Women's organic cotton thong in white

Our classic white thong: super-soft, sleek and incredibly comfortable.

Our low-rise organic cotton thong allows for maximum comfort and breathability throughout the day, and is distinctively sleek with minimal coverage.

Made with GOTS Certified Organic, Fairtrade and PETA-Approved Cotton
Ethically produced in India
No internal labels for a smooth fit and no VPL!

For every pair of underwear you buy, we donate one pair to the charity Smalls for All.

Each thong saves:

35 litres of water

15 grams of carbon dioxide

View our sizing charts below. If you're in-between sizes, we recommend sizing up for comfort! If you need more specific sizing help, please email us at help@youunderwear.com.

How to Measure Yourself

Chest band: wrap the tape measure around your body, just under your bust.

Bust: measure the fullest part of your bust.

Waist: measure around your body approximately 5cm below your natural waist where the waistband of trousers normally sit.

Lower hip: wrap the tape measure around the fullest part of your hips and bottom.

Two-Way Strap Bralette:

Bralette Size	UK	Band Width (in)	Band Width (cm)	Fits Bra Sizes (Approx)
XS	8-10	27"	68.5	30 B/C/D - 32 A/B/C
S	10-12	29.5"	75	32 B/C/D - 34 A/B/C
M	12-14	32"	81	34 C/D - 36 A/B/C
L	14-16	34.5"	87.5	36 C/D - 38 A/B

More Supportive Bra:

Bra size	Chest band measurement (inches)	Approx. cup sizes	Approx. UK dress size
Small	28-30"	C, D, DD	8- 10
Small +	28-30"	DD, E, F	8- 10
Medium	32-34"	C, D, DD	12-14
Medium +	32-34"	DD, E, F	12-14
Large	36-38"	C, D, DD	16-18
Large +	36-38"	DD, E, F	16-18

Women's Thongs, Bikinis, and Boy Shorts:

UK Sizes	EU Size	Waist (in)	Waist (cm)	Hips (in)	Hips (cm)
6	34	23-24	58.5 - 61	33	84
8	36	25-26	63.5 - 66	35	89
10	38	27-28	68.5 - 71	37	94
12	40	29-30	73.5 - 76	39	99
14	42	31-32	78.5 - 81	41	104
16	44	33-34	83.5 - 86	43	109
18	46	35-36	88.5 - 91	45	114
20	48	37-38	93.5 - 96	47	119
22	50	39-40	99.5 - 101	49	124

Men's Hipster Trunks:

Size	Waist (in)	Waist (cm)	Clothing Size (approx.) (in)	Clothing Size (approx.) (cm)
S	31-33"	79-84	30-32"	76-81
M	33-35"	84-89	32-34"	81-86
L	36-38"	91.5-96.5	34-36"	86-91
XL	39-41"	99-104	36-38"	91-97
XXL	41-43"	104-109	38-40"	97-102

Girls' Bralettes:

We feel that there isn’t a set size for bodies at different ages, and we don’t want to put any additional pressure on young girls, so our sizing looks a little different. We have 4 sizes, all named after Ugandan towns! We suggest using band width as a starting point, although do get in touch if you have any specific sizing questions.

Size	Band Width (in)	Band Width (cm)	Fits Ages (Approx.)	Worn By:
Jinja	23	57-58	9-10	Hollie & Amelia, age 9 1/2, band with 23"
Kira	25	63-64	10-11	Help us fill this in ...
Lira	27	68-69	11-14	Liv, age 11. Phoebe & Flora, age 11 1/2. Lana, age 13 1/2, 69cm band width, wears 30B/XS. Beth, age 14.
Masaka	29	73-74	13+	Hannah, 32C

Girls’ Knickers:

Details	Waist (in)	Hips (in)	Ages (Approx.)	Women's equivalent size
Jinja	22-23.5”	25-27”	7-9	4 (EU 32)
Kira	24-25”	30-32”	9-11	6 (EU 34)
Lira	25.5-27”	34-35”	11-13	8 (EU 36)
Masaka	27.5-28.5”	37.5-38.5”	13+	10 (EU 38)

- Stretch-blend organic cotton
- 95% GOTS Certified organic cotton, 5% elastane
- Pre-washed, shrink-resistant fabric

Machine wash, do not tumble dry - we suggest the eco-conscious choice of 30°C.

£2.25 for single items, £3.95 for sets and packs

Free shipping on UK orders over £60
All items posted Royal Mail's Tracked 48 service
International Shipping information is available here

We offer a happiness guaranteed return policy. If you are unhappy for any reason, we offer a fuss-free exchange or refund on all unworn and unwashed items within 30 days of purchase.

Orders over £60 qualify for free UK delivery

Fuss-free exchange or refund on all items within 30 days of purchase

Cute and comfy, but didn’t last😔

Thought I loved these undies until I noticed the other day that the waistband elastic had fully gone, making them unwearable. I’ve not had them for very long, only a few months, and haven’t worn them very often in this time. I’m glad that I can now recycle them but
feel that them being branded as sustainable should mean that they last longer than the fast fashion alternatives!

Hi Eva,
I'm so sorry that you had this experience with the undies you ordered from us. That definitely shouldn't have happened and sounds like a fault with the elastic or manufacturing process. I want to reassure you that isn't standard for our items, which are usually of very high quality as well as being ethically made.
I am very happy to replace those for you, so please just let me know the details and I will get new pairs out to you as soon as possible. I hope that's ok, although please let me know if you would prefer a refund instead.
Many apologies again for the inconvenience caused. Best wishes, Sarah

Everything i have been looking for!

I cannot recommend this brand/ thong enough. They are so soft and comfy! I would say they fit true to size too :) Love.

Many thanks for your lovely review and kind words Luna. I'm really pleased that you like our undies and thanks for the useful feedback about sizing too. Thanks again for your support and best wishes, Sarah

Women's organic cotton thong in white

Women's organic cotton thong in white

Customer Reviews