Bamboo underwear for women, cut as a boxer with a 6 or 9 inch leg that covers where thighs rub. Breathable, cool on hot days, and sized UK 8 to 30 at one price.
£20 a pair, or about £13 a pair in a 7 pack. Free gift with every 7 pack.
Tap a colour to choose your size. Every colour comes in UK 8 to 30 in the 6 inch leg, at one price.
6 inch in every colour and size. 9 inch in black and pine green, also to a 30.
See all colours and sizesMost women find us after years of so-called comfortable underwear that digs in, rides up or leaves them sore by the afternoon. Here is what changes.
Bamboo viscose feels smooth straight out of the pack. 41% of our reviews mention softness without being asked.
The fabric lets air through and moves moisture away from your skin, so you are not left in damp fabric on hot days, at the gym or after a night sweat.
A 6 or 9 inch leg covers where thighs touch, and the leg band is cut for your size so it doesn't creep up.
Every size is the same price, with the leg opening graded separately so it fits a 28 as well as it fits an 8.
When we went through all 336 of our reviews, 76% mentioned comfort and 40% mentioned softness. These are the ones that compare us with the comfy knickers they wore before.
I have now bought this style pants from 4 suppliers and these are by far the best. Extraordinarily comfortable, they don't ride up and fit so well.
Verified buyerUK (reviewer earned a reward for a future purchase)
More comfy than Step One. I tried step one boxers for ladies. But I do find that they're not as breathable in your nether regions as Flissie.
SamemUK, verified review
The material is very lightweight and breathable, and the sizing/fit is perfect. Love the colours!
AmalieUK, verified review
These are very comfortable and cool to wear. They have been a godsend in this hot weather. They wash well too!
MarleneUK, verified review (reviewer earned a reward for a future purchase)
Most bamboo underwear women buy is a brief, a bikini or a thong. A brief stops 2 to 4 inches down the thigh, which is fine until your thighs touch. Then it creeps, rolls into a rope or leaves a sore patch by the end of the day.
A boxer with a proper leg fixes that. It covers the skin that rubs, and gives the leg band something to hold on to.
No seams at the back or sides, a flat front seam and a wide, mid-rise waistband that sits below the navel. If chafing is why you are here, see our chub rub shorts. If you are a UK 16 or above, our plus size underwear page shows live stock in your size.
Where the leg ends
No knicker is woven from raw bamboo. Bamboo pulp is dissolved and spun into viscose, and that is what every bamboo brand in the UK sells, whether the label says so or not. Ours is 95% Tanboocel bamboo viscose with 5% elastane. No nylon.
As breathable underwear for women who run hot, it does three things well: it is soft, it lets air through, and it moves moisture away from your skin. It drapes rather than clings, so it sits smoothly under jeans and dresses.
Wash cool, dry in the air
The one thing it dislikes is heat. Wash at 20 degrees, dry in the air, and your pairs keep their softness. The dyes are tested to OEKO-TEX Standard 100. For the long version, read our bamboo vs cotton underwear review.
Seven brands selling women's bamboo underwear in the UK, compared on what you can actually check. Checked against each brand's own product pages on 24 September 2026. We have no commercial relationship with any of them, and prices move.
| Brand | Style | Fabric | Sizes | Leg length | Per pair |
|---|---|---|---|---|---|
| FlissieOurs | Boxer short | 95% Tanboocel bamboo viscose, 5% elastane | UK 8 to 30, one price | 6 inch or 9 inch | £20, or about £13 a pair in a 7 pack |
| Boody | Boyleg and midi briefs, seamfree | 79% viscose from bamboo, 15% nylon, 6% elastane | XS to 4XL | Not published | £13, less in bundles of 3 or more |
| Step One | Women's Body Shorts | 95% bamboo viscose, 5% spandex | XS to 4XL | Not published | £15, less in packs |
| OddBalls | Ladies bamboo boxer shorts | 92% viscose from bamboo, 8% elastane, polyamide panels | UK 10 to 22 | Not published | £15, from about £8.50 in a 9 pack |
| Spairs | Mid briefs, bikini briefs, thongs | 95% viscose from bamboo, 5% elastane | UK 10 to 18 | Not published | About £2, sold in 5 packs from £9.99 |
| BAM | Seamless midi short, high waist briefs | 79% viscose from bamboo, 15% polyamide, 6% elastane | S to L (UK 10 to 14) | Not published | £18, about £13.75 in a 4 pack |
| British Boxers | Hipster boxer brief, full brief, high leg | 95% bamboo viscose, 5% elastane | XS to 4XL | Not published | £18, about £9 in a 4 pack on sale |
Spairs is the cheapest bamboo underwear UK shoppers can buy, by a distance, at about £2 a pair, and we will never compete with that.
Boody and BAM are seamfree, which sits flatter than we do under sheer fabric.
OddBalls has far more prints than our colours, and a lower price per pair in its bigger bundles.
If you want a brief, bikini or thong, Boody, Spairs and British Boxers all make them and we do not.
What none of the six publishes is a leg length, and none sells numbered UK sizes above a 22; three go to a lettered 4XL, so check their charts. Ours are UK 8 to 30, with the leg length on the page.
You will see bamboo underwear sold as antibacterial, odour-fighting, hypoallergenic or ten times softer than cotton, sometimes by brands in this table. We will not say any of that. Once bamboo has been turned into viscose, those properties are not something any of us can prove about the finished knicker, and the US Federal Trade Commission has been acting against bamboo textile claims of exactly this kind since 2009.
What we will tell you is what you can check: 95% bamboo viscose, a 6 or 9 inch leg, UK 8 to 30 at one price, and 60 days to wear them, wash them and decide, with a full refund if they are not right. If you want the long version of the benefits and the drawbacks, read is bamboo underwear good?
Buy your usual UK dress size. Between sizes, go up. Every size is the same price.
Tap your UK size
EU and US sizes are on our size guide, and the size swap on your whole first order is free. Buying a bamboo knickers multipack? UK delivery is free, a 7 pack brings them to about £13 a pair, and you can mix colours and leg lengths however you like.
Not for you if you need a bonded, seamfree edge under something sheer, want a band that comes up over the tummy, or want a brief or thong. We only make the boxer, and other bamboo brands are cheaper per pair.
Wear them, wash them, live in them. If they are not right, send them back for a full refund, worn or not. The size swap on your whole first order is free.
Free UK delivery on every order. About £13 a pair in a 7 pack, with a free gift.
Still have a question?
Email community@flissie.com
Yes, if you want underwear that is soft, breathable and cool against the skin. Bamboo viscose moves moisture away rather than holding it, which is why it suits hot days, exercise and night sweats. It needs a cool wash, and it will not do anything a label cannot prove, such as kill bacteria.
For softness, breathability and drying time, bamboo viscose usually wins. Cotton is cheaper, tougher in a hot wash and easier to find in every style. We wore both for two years and wrote up the honest result in our bamboo vs cotton underwear review.
It depends on the style you want. For a boxer with a published leg length in UK 8 to 30, we would say ours. For seamfree briefs, Boody. For the lowest price, Spairs. Our guide to the best bamboo underwear for women compares seven brands sold in the UK side by side.
Mostly, yes. In the UK knickers and pants mean the same thing, and boxers are a style with a leg. Ours are ladies bamboo underwear cut as a boxer, so if you have been searching for ladies bamboo knickers, bamboo knickers for women or bamboo panties with more coverage, this is that pair.
Bamboo viscose shrinks with heat, costs more than cotton and is not as hard-wearing in a hot wash or a hot tumble dryer. Most of the green claims made about it do not survive the viscose process either. Wash it cool at 20 degrees, dry it in the air and it lasts.
We do not claim either, and we would be wary of any brand that does. Once bamboo is processed into viscose, those properties cannot be shown for the finished fabric, and the US Federal Trade Commission has acted against claims like these on bamboo textiles since 2009.
Buy your usual UK dress size: S is 8 to 10, M is 12 to 14, L is 16 to 18, XL is 20 to 22, 2XL is 24 to 26 and 3XL is 28 to 30. If you are between sizes, size up. The size swap on your whole first order is free.
Of the seven brands in our table, only Flissie sells numbered UK sizes above 22: every colour of our 6 inch goes to a UK 30 at the same £20 as a size 8. Boody, Step One and British Boxers go to 4XL, so check their charts. Our plus size underwear page shows live stock for sizes 16 to 30.
Yes. You have 60 days from purchase to return them for a full refund, worn or not, and the size swap on your whole first order is free. Email community@flissie.com with your order number to start.
