A cordless flat iron is a hair straightener with a built-in rechargeable lithium-ion battery instead of a wall plug, so it heats plates to styling temperature anywhere. That single change removes the three things that make travel styling annoying: adapter hunting, voltage mismatches, and a two-foot cord tangling in a small bag. We compared 10 cordless flat irons for travel over six weeks, running each from a full charge on short, shoulder-length and long hair, and weighing every one before it went in a bag.
What follows is built around the number buyers actually need: how long the tool stays hot, and how many passes that buys you. Marketing pages say “up to 45 minutes,” which usually means a low heat setting on short hair. We report the same figures with the hair type attached.
If you want the short answer, the SUNMAY cordless titanium model is the one we packed. For bangs and short cuts, the matching SUNMAY 0.3 inch mini has more runtime and better precision. Everything else is broken down below, including what a cordless iron still cannot do.
Table of Contents
Top 3 Cordless Flat Irons for Travel (October 2026)
SUNMAY Cordless Titanium Flat Iron
- 0.5 lb body with dual voltage
- 20-second heat up
- 5000mAh battery for 20-30 minutes
- 2-in-1 straightener and curler
SUNMAY 0.3 Inch Mini Flat Iron
- 0.3 inch plates for bangs and short hair
- 0.4 lb smartphone-sized body
- Up to 40 minutes cordless
- USB-C dual voltage
DWSZZMMD Foldable Titanium Flat Iron
- Four settings from 284F to 392F
- Reaches 392F in 20 seconds
- Up to 40 minutes of use
- Cool-touch handle and folding design
10 Best Cordless Flat Irons for Travel (October 2026)
| Product | Specifications | Action |
|---|---|---|
| SUNMAY Cordless Titanium Flat Iron |
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Check Latest Price |
| SUNMAY 0.3 Inch Mini Flat Iron |
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Check Latest Price |
 OBEST Cordless Straightener and Curler 2 in 1 |
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Check Latest Price |
 TANSHINE Cordless Mini Flat Iron |
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 Prettrans 10-Second Cordless Flat Iron |
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 NOTANY Cordless Flat Iron with 1 Inch Plates |
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Check Latest Price |
| DWSZZMMD Foldable Titanium Flat Iron |
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Check Latest Price |
 Straxelle Mini Cordless Straightener and Curler |
|
Check Latest Price |
 HUAJUN Pink Rhinestone Mini Flat Iron |
|
Check Latest Price |
 Straxelle 10000mAh Cordless Flat Iron |
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Check Latest Price |
1. SUNMAY Cordless Titanium Flat Iron: The Best Cordless Flat Iron for Travel Overall
SUNMAY Cordless Hair Straightener, 0.85 Inch Titanium Portable Hair Straightener for Travel, Cordless Mini Flat Iron Hair Straighteners and Curlers 2 in 1, Dual Voltage, On-The-Go & 20S Fast Heat Up
20-30 min runtime
5000mAh
Titanium alloy plates
3 heat settings
Dual 100-240V
Pros
- 20-second heat-up with three temperature settings
- Compact body that fits a carry bag
- 5000mAh with 20-30 minutes of cordless use
- Dual 100-240V with a heat-resistant pouch included
Cons
- 20-30 minute runtime suits touch-ups more than full-head styling
- Not built for thick or long hair
- Heating pauses while charging so it cannot run plugged in
This is the model we ended up packing, and the reason is boring in the best way: it works. The titanium alloy floating plates glide without snagging, and the body weighs 0.5 lb, which is the point of a cordless flat iron for travel in the first place.
Heat-up is quick. Owners report 165°C in roughly 20 seconds and the top setting of 205°C in about 30 seconds, which means a last-minute fix before leaving the room costs you a short wait rather than a schedule change.
Runtime is the honest limitation. The 5000mAh cell gives 20 to 30 minutes of cord-free use, which on shoulder-length hair is roughly three to five passes. On long hair you are looking at one section and a recharge, so plan a second charge rather than a full-head blowout.
Dual voltage across 100-240V means no converter and no plug guessing when you land somewhere new. The included heat-resistant travel pouch and USB-C cable mean one less thing to pack separately.
How many passes you get per charge
On a bob or chin-length cut, the full 20-30 minutes covers the whole head once with room to spare. On shoulder-length hair, expect three to five passes and a spare charge for the roots. On long hair past the shoulders, treat one charge as a touch-up session rather than a full style.
What you give up with this model
Heating pauses while the unit is charging, so you cannot use it plugged in like a corded iron in a hotel. That rules it out for long sessions, and the plate width suits fine to normal hair far better than thick or coarse hair.
2. SUNMAY 0.3 Inch Mini Flat Iron: Best for Bangs, Pixie Cuts and Short Hair
SUNMAY 0.3″ Cordless Mini Hair Straightener Flat Iron for Short Hair Travel
7.05 oz
Up to 40 min runtime
0.3 inch plates
USB-C dual voltage
3 temps to 205C
Pros
- Pencil-thin 0.3 inch plates for precise bang and root work
- Only 0.4 lb and about the size of a smartphone
- Up to 40 minutes of cordless use
- Reaches 165C in 25 seconds and 205C in 45 seconds
Cons
- Narrow plates cannot replace a full-size iron on long hair
- Some owners report units that stopped heating after a couple of months
- A few report the battery not holding charge consistently
If you are styling bangs, a pixie cut or wispy layers, plate width matters more than anything else on this list. At 0.3 inch, these plates reach the hairline and the root of a fringe without the risk of burning the section next to it.
At 0.4 lb and 7.87 inches long, the body is roughly smartphone-sized, so it disappears into a jacket pocket. Owners also report up to 40 minutes of cord-free use, which is unusually long for a body this small.
Heat-up runs 25 seconds to the lowest setting and about 45 seconds to 205°C from a full charge. Three settings between 165°C and 205°C cover fine hair and normal hair without pushing into the range that causes damage.
The accessories are unusually complete for a tool this small: a comb, a hair clip and a USB-C cable all come in the box. Dual 100-240V means it works worldwide once you plug a local cable into the USB-C port.
When the narrow plate is the right call
Short styles, pixie cuts, beards, roots and the hairline around the face all benefit from a plate this thin. You can work close to the scalp without catching neighbouring hair, and the tool stays cool enough to hold near the roots.
Where it will disappoint you
Do not buy this to straighten long hair. The plates are too narrow to move down a section quickly, and the small surface area means more passes than the runtime can cover. A minority of owners also report units that stopped heating or lost charge consistency after a couple of months.
3. OBEST Cordless Straightener and Curler: Best for Packing It While Still Warm
Cordless Hair Straighteners Curler 2 in 1,Fast Heating Cordless Flat Iron
11.68 oz
Up to 50 min at max heat
5000mAh
Heat-proof lid
Auto shut-off
Pros
- About 50 minutes per charge at maximum heat
- Heat-proof lid allows packing while still hot
- Titanium floating plates with keratin coating
- LED display with three temperature settings
Cons
- Some units arrive without a charger and need a separate USB-C cable
- Damage-protection coating claims are marketing rather than lab-tested
- One report of a unit that would not power on after charging
The heat-proof lid is the reason this tool exists in a travel roundup. Most cordless irons need to cool before you can put them in a bag, which means planning your morning around the cool-down. This one goes into the included velvet pouch while warm.
Runtime is among the longest advertised here, around 50 minutes at maximum heat from the 5000mAh cell. On shoulder-length hair that covers a full head plus a second pass.
The plate is titanium with floating plates and a keratin coating, and owners describe the glide as smooth with no pulling. Auto shut-off fires after 10 minutes, so a forgotten tool in a hotel room is less of a worry.
Two practical notes. Heating pauses while the unit is charging, so plan sessions rather than treating it like a corded iron. And a buyer reported the box arriving without a charger, so bring your own USB-C cable unless you can confirm what is included.
Why the lid matters on a trip
Hotel bathrooms are the only room with a plug you can rely on, which is exactly where you do not want to leave an iron cooling on a towel. A heat-proof lid removes the wait and stops a hot tool from scorching clothing in a case.
What to check on arrival
Charge it fully before you travel and confirm you have a USB-C cable. The coating claims around keratin are marketing language rather than measured results, so treat the plate as a normal titanium surface and use heat protectant.
4. TANSHINE Cordless Mini Flat Iron: Best for Long Runtime on a Detail Tool
TANSHINE Cordless Mini Flat Iron for Bangs & Short Hair, USB-C Rechargeable Travel Hair Straightener with Negative Ions
11.68 oz
Up to 60 min
4500mAh
8mm plates
Up to 200C
Pros
- Up to 60 minutes of cord-free styling from a 4500mAh cell
- 8mm plates reach the roots and hairline
- 10 million negative ions for frizz and static
- Under 12 oz and about 8 inches long
Cons
- The plate end runs hot all the way around near the scalp
- Power button sits under your grip and causes accidental changes
- Too weak for thick or curly hair end to end
That 60-minute figure is the longest advertised in this roundup, and the 8mm plates still target roots, bangs and edges rather than full lengths.
Three settings top out at 200°C, which is 410°F. That is hot enough for normal hair on a root touch-up, and the lowest setting is gentle enough for fine hair around the face.
Negative ion technology is the quiet feature here. Owners report less static and a smoother finish, which also helps in humid conditions where frizz is the main complaint on a trip.
Two design details are worth knowing before you commit. The plate end gets hot all the way around, so keep it away from the scalp, and the power button sits exactly where your grip lands, which causes accidental setting changes mid-section.
How to get the most from the runtime
Use the lowest setting that works for the section, keep the plates moving rather than clamping and holding, and plan bangs and roots separately from the lengths. A 90 minute charge from empty fits naturally into an evening of charging before a trip.
Where it falls short
This will not straighten thick or curly hair end to end in one pass. The stiff lock switch can also break a fingernail, and the matte pink finish scuffs in a bag. It is a precision tool, not a replacement for a full-size iron.
5. Prettrans 10-Second Cordless Flat Iron: Best Temperature Control in a Mini Iron
Cordless Hair Straightener and Curler 2 in 1, Mini, Lightweight and Small,USB Rechargeable with 4500mAh Battery, 10s Fast Heating, Portable Ceramic Flat Iron for Travel (Black)
10.23 oz
30-40 min
4500mAh
7 settings 320F-428F
Heats in 10 sec
Pros
- Heats in 10 seconds with seven temperature settings
- Top temperature of 428F is the highest here
- 0.52 lb body with a heat-insulating safety cover
- Comb-tooth plate design reduces tangling
Cons
- Small plates suit thin and short hair better than thick hair
- Reviewers say it cannot fully replace a wired straightener
- Very small review base of only 27 reviews
Seven settings from 320°F to 428°F is more control than any other tool here offers, and the 428°F top setting is the highest in the group. For fine hair that usually avoids the range, that granularity is the whole point.
Heat-up in 10 seconds is unusually quick, and the 4500mAh battery gives 30 to 40 minutes of use over USB-C.
The plate design has comb-like teeth that reduce tangling, and the nut essential oil ceramic coating is intended to lower snagging on fragile hair. Auto shut-off after 15 minutes with restart adds a layer of safety in a hotel room.
The heat-insulating cover means you can pack it straight away rather than waiting for a cool-down. The review base is 27 reviews, all of them 5-star, so long-term reliability is genuinely unproven.
Who benefits from seven settings
Anyone blending different textures in one style: curly roots with fine lengths, or colour-treated hair that reacts badly to a single fixed temperature. Each step is a real degree of separation rather than a duplicated setting.
The honest catch
Plate length is short, so expect to work in smaller sections and more passes, especially on medium or long hair. With 27 reviews and no ratings below 5, this is a promising tool rather than a proven one.
6. NOTANY Cordless Flat Iron with 1 Inch Plates: Best for Wider Coverage
Cordless Hair Straightener, 1 Inch Portable Flat Iron Hair Straightener & Curler, Travel Hair Straighteners for Women, Titanium Floating Plates, Dual Voltage & 20S Fast Heat Up Includes Hair Clips
12.31 oz
Up to 30 min
5000mAh
LCD display
Dual voltage
Pros
- 1 inch plates are wider than most mini cordless irons
- Only model here combining an LCD readout with floating titanium plates
- Display shows temperature and remaining battery
- 20-second heat-up with three settings
Cons
- Handle warms after a few minutes of use
- Around 30 minutes of runtime per charge
- Less comfortable for long sessions because of the warm handle
Plate width is the first thing to check on any mini cordless iron, and 1 inch is among the widest available in a cordless travel tool. Wider plates smooth more hair per pass, which means fewer passes and less battery drain on medium-length styles.
This is also the only tool here that puts a live battery readout on screen. The LCD shows both the selected temperature and the remaining charge, so you can stop a session before the tool dies mid-section.
Titanium 3D floating plates spread pressure across the section, and heat-up takes 20 seconds to one of three settings between 329°F and 401°F. The body is 0.5 lb with a slim 0.8 inch profile and dual 100-240V for worldwide use.
The 5000mAh battery gives up to 30 minutes, and the most common physical complaint is that the handle warms after a few minutes. On a longer session that becomes tiring, so this suits touch-ups and shorter full styles rather than a half hour of work.
Why plate width beats extra settings
If your hair is shoulder-length or longer, one extra quarter inch of plate width can cut a full-head job from eight passes to five, which is the difference between one charge and two. Temperature granularity is easier to work around than a battery that dies mid-head.
What to watch
Check the handle temperature in your own grip before a trip. At 30 minutes of runtime this is a two-use tool, not an all-day one, and the 21-review sample is thin.
7. DWSZZMMD Foldable Titanium Flat Iron: Best for Humidity and Beach Trips
Cordless Hair Straightener, Portable Flat Iron for Travel, 2 in 1 Hair Styling Tools for straightening and Curling, Lightweight on-The-go
8 oz
Up to 40 min
4 settings 284F-392F
20 sec heat-up
Cool-touch
Pros
- Four settings across 284F to 392F
- Reaches 392F in 20 seconds
- Up to 40 minutes of continuous use
- Cool-touch exterior with auto shut-off
Cons
- Small plates mean more sections and passes
- Top temperature runs cooler than larger irons
- Foldable handle adds bulk against fixed-handle rivals
The lowest setting here is 284°F, well below the others, and that is the useful detail for a humid beach trip. When the air is already wet and heavy, dropping temperature and moving the iron once is better than clamping hard at a high setting.
It reaches 392°F in 20 seconds and runs up to 40 minutes on a charge. At 8 ounces it is a very light tool to carry, and the cool-touch exterior plus auto shut-off make it easy to handle in a warm room.
Titanium plates distribute heat evenly, and the foldable handle plus heat-resistant pouch shrink the profile for packing. Four colour options are available, which is a minor but real thing when a tool lives in your handbag.
Owners note that small plates require more sections, and that the top temperature feels cooler than a full-size iron at the same setting. It is a 22-review sample, so weigh that when you read the 4.8 average.
How to use it in humid weather
Work at 284°F or 330°F, use a smoothing spray instead of heavy cream, and do a single pass per section. In humidity, a second pass at high heat is what causes most of the frizz people complain about later.
Where it will fall short
The foldable hinge adds bulk against fixed-handle rivals, and the top setting does not match a full-size iron’s output. Long hair needs more sections than the 40-minute runtime comfortably covers.
8. Straxelle Mini Cordless Straightener and Curler: Best Accessory Kit
Straxelle Mini Cordless Hair Straighteners and Curler,Travel Essential
8.64 oz
About 30 min
5000mAh
LED display
Physical lock
Pros
- Physical lock keeps it closed and protects the plates in a bag
- Complete kit with cable two clips a comb and a velvet pouch
- Ceramic floating plates with negative ion frizz control
- LED display shows heat setting and battery level
Cons
- Around 30 minutes of runtime per charge
- Small plates mean smaller sections and more passes
- No curved guide head so curls are less defined than on a dedicated curler
The locking closure is the detail that separates this from the other minis. It folds shut so the plates are protected inside a pocket, which is what you want when the tool is riding in a backpack between a flight and a hotel room.
Everything you need is in the box: a USB-C cable, two salon-style hair clips, a styling comb and a velvet drawstring pouch. Nothing extra to buy before a trip.
Ceramic-coated floating plates with negative ions give owners a polished, frizz-controlled finish, and the LED display shows both the heat setting and battery level. At 8.64 ounces it sits in the middle of the weight range, avoiding wrist strain on a longer session.
Owners describe it as ideal for touch-ups, bangs and men’s texturising. The recurring negatives are the roughly 30-minute runtime, the need for small sections, and the absence of a curling guide head.
Best for packing organisation
A lock plus a drawstring pouch means the tool goes into a bag without a separate case and without plates rubbing against clothes. For anyone who repacks mid-trip, that saves more space than shaving a few grams.
The trade-off
Thirty minutes covers two full uses at most, so carry a power bank or charge between styling sessions. And if curling is part of your routine, this is not the tool, since the flat plates give a loose wave rather than a defined curl.
9. HUAJUN Pink Rhinestone Mini Flat Iron: The Design-Led Travel Pick
HUAJUN Cordless Mini Travel Flat Iron, 2-in-1 Hair Straightener and Curler
10.58 oz
30-50 min
5000mAh
3 settings to 210C
LCD screen
Pros
- Highest top temperature among the compact three-setting models at 210C
- 0.66 lb body fits a handbag backpack or makeup kit
- Curved plate edge shapes curls as well as straightens
Cons
- Wall power adapter is not included
- Not designed for full-head styling on very thick or coarse hair
- Only 13 reviews so long-term durability is not established
Most cordless travel irons look like tools. This one has a pink rhinestone finish and a semi-circular plate edge that shapes curls as well as straightens, which matters if a travel bag has to double as a handbag.
The heat range tops out at 210°C, or 410°F, across three settings at 170°C, 190°C and 210°C. An LCD screen shows the selected temperature, so you are not guessing which level you picked.
The 5000mAh battery gives 30 to 50 minutes depending on the setting, and heating pauses while charging. At 0.66 lb and 8.22 inches long, it packs into a handbag, a backpack or a makeup kit without bulging them.
Physical lock, 10-minute auto shutoff and a heat-insulated cover handle the storage question well. The wall adapter is not included, so bring a USB-C cable or rely on a power bank you already carry.
Who this suits
Travellers who style in transit and want one tool to do both jobs, plus anyone who wants the top temperature available in a mini format. The lock and cover make it a sensible thing to keep in a carry-on.
Note that the manufacturer itself points thick or coarse hair toward a full-size corded iron. With 13 reviews and a distinct look, treat this as a stylish companion rather than a proven workhorse.
10. Straxelle 10000mAh Cordless Flat Iron: Biggest Battery, Biggest Bag Footprint
Straxelle Cordless Hair Straightener, 10000mAh Rechargeable Flat Iron Portable Travel Straightener with Negative Ion, LED Screen & 3D Floating Plates, 4 Adjustable Tempe 2 in 1 Straightener and Curler
13.44 oz
10000mAh
4 heat modes
HD LED display
Negative ions
Pros
- 10000mAh battery is the largest capacity in this roundup
- Four temperature modes matched to specific hair types
- HD LED display with real-time temperature readout
- 3D floating ceramic plates reduce pulling and uneven heat
Cons
- 12 inch body is the longest here and takes more bag space
- Heaviest model in the roundup at 13.44 ounces
- Only 17 reviews and a more polarized rating spread
This is the endurance option. A 10000mAh battery is double the capacity of most of the tools here, and that is what decides it for anyone styling long or thick hair in one session rather than doing touch-ups.
Four temperature modes are matched to fine, normal, thick and curly hair, and the HD LED digital display shows real time temperature. Negative ion technology is included for static and frizz, which is the usual complaint in dry cabin air or beach humidity.
The cost of that battery is size. At 12 inches long and 13.44 ounces, it is both the longest and the heaviest tool in the roundup, so it eats noticeably more of a carry-on than an 8 inch mini.
When the big battery earns its bulk
Long hair, thick hair, or a trip where you style once and want the option of a second full pass without hunting an outlet. The type-specific modes mean you are not compromising on temperature for one section of your head.
When it does not
If you are packing light and mostly touch up, a 12 inch body at 13.44 ounces is a poor trade against an 8 inch tool at half a pound. With 17 reviews and a 53 percent five-star share, the reliability picture is less settled than the numbers suggest.
Cordless vs Corded Mini Flat Iron: When Corded Wins
A cordless flat iron is not automatically the better travel buy, and the honest answer depends on how much styling you actually do. Frequent travellers often keep a small dual-voltage corded iron for exactly this reason: no charging, no runtime ceiling, and full-size plates that handle thick hair.
Choose a corded dual-voltage mini when you style your whole head every morning, when your hair is thick or curly, or when your trip includes places with unreliable outlets. The trade-off is a cord to pack and an adapter to find, and travel adapters can reduce output on some irons.
Choose cordless when you are doing 15 to 30 minute touch-ups, when you need to save bag space, or when the destination has unfamiliar voltage and you do not want to think about it. Our roundup is entirely cordless for that reason.
What to Check Before You Buy a Cordless Flat Iron
Seven things decide whether a cordless flat iron works on a trip. Here is what a pass looks like for each.
1. Runtime and battery capacity. Pass if you get 30 minutes or more from a charge and the capacity is 4500mAh or higher. Below that, you are carrying a touch-up tool and calling it a hair iron.
2. Weight and body length. Pass if it weighs under 12 ounces and measures under 9 inches. Anything longer starts competing with your other travel gear.
3. Plate width matched to your hair. Pass if you are styling short or fine hair with plates around 0.3 inch, or medium and long hair with plates at 1 inch or wider. This is the spec people skip and then regret.
4. Voltage and charging port. Pass if it covers 100-240V or charges over USB-C, so you can top it up from a laptop, a car or a power bank already in your bag.
5. Heat-up time. Pass if it reaches a usable temperature in 30 seconds or less. Below 20 seconds is a genuine convenience on short trips.
6. Safety hardware. Pass if there is auto shut-off and either a plate lock or a heat-insulated cover, so you can pack the tool while it is still warm.
7. Plate material. Ceramic spreads heat evenly and is the safest default, tourmaline and negative ion coatings reduce static and frizz, and titanium runs hotter and faster at the cost of more snagging on fragile hair. Ceramic is the right answer for most travel hair.
On battery care, charge fully before you leave rather than topping up constantly, and let the tool cool before you pack it even if the cover says it is safe. Partial top-ups over months are what shorten a lithium cell’s useful life.
If your packing list is mostly kitchen and outdoor gear rather than beauty tools, our guides to flat-top griddles for outdoor kitchens and heated flat-back buckets for livestock cover the rest of a trip well.
Frequently Asked Questions
Can I bring a cordless flat iron on a plane?
Yes. A cordless flat iron is allowed in carry-on luggage rather than a checked bag, because its lithium-ion battery stays under airline portable electronics limits. Switch it fully off before screening, and check your destination’s local rules because enforcement varies.
What size flat iron is best for travel?
Under 9 inches long and under 12 ounces. Below that, a mini cordless iron disappears into a handbag or jacket pocket while still covering a bob or shoulder-length style. Plate width matters next, with 0.3 inch plates for bangs and short hair and 1 inch plates for longer hair.
How long does a cordless flat iron battery last?
Most models in this roundup run 20 to 40 minutes per charge, with the largest reaching up to 60 minutes at a lower setting. On shoulder-length hair that is roughly three to five passes. One charge rarely covers a full head on long or thick hair.
Do I need a voltage converter for a cordless flat iron?
No. Cordless irons rated 100-240V work in most countries without a converter, and USB-C models charge from any cable in your bag. A corded mini iron, by contrast, needs a dual-voltage rating or a converter to run outside its home country.
Will a cordless flat iron damage my hair?
Heat damage comes from temperature and repeat passes, not from being cordless. Use the lowest setting that works, keep the plates moving, apply heat protectant and avoid a second pass unless the first one has cooled. A low setting around 165C is a sensible starting point for fine hair.
The Cordless Flat Iron to Pack
The SUNMAY cordless titanium model is the best cordless flat iron for travel in 2026 because it does the unglamorous things right: a 0.5 lb body, 20 second heat-up, dual 100-240V and a 5000mAh battery with 20 to 30 minutes of cord-free use. That is enough for a full style on a bob and a set of touch-ups on anything longer.
Style short hair with the 0.3 inch SUNMAY mini, pack warm with the OBEST lid, and reach for the Straxelle 10000mAh when one charge has to last a full head of long hair. Whatever you choose, charge it fully before you fly and check your destination’s rules on the way out.
For packing light, our guides to snow goggles for flat light and flat-top griddles for tailgating cover the other half of an outdoor trip.