Casual Underwear
Comfortable, well-fitting underwear is the foundation of every outfit, literally. Briefs, thongs, hipsters, boy shorts, seamless styles in cotton, modal, lace, and performance fabrics. We carry options from M&S, ASOS, and specialist brands across a wide range of sizes. Many featured brands offer inclusive sizing and sustainable fabrics. Use our filters to browse by style and fabric, or tell the AI stylist what you need.
Products
482 products
River Island
River Island Womens Cream Croc Embossed Toe Thong Wedges
£39.00
Ann Summers
Ann Summers Bright Pink Lace Thong
£8.00
Modibodi
Modibodi Light Pink Light Flow Period Briefs
£17.99
Dorina
Dorina Light Pink Lace-Trimmed Micro String Thong
£3.00
EGO
EGO Brown Faux Leather Thong Strap Slingback Heels
£25.00
DKNY
DKNY Black Sleeveless Crew Tank & Short Boxer Pyjama Set
£69.00
SALE
ASOS
ASOS Cotton On 5 Pack Party Pants Briefs in Black
£19.00£25.00
revolve
Revolve Floral Print Mini Skirt in Diaz Aqua
£51.53
Limited Collection
Limited Collection Plus Size Dark Pink Stripe Boxer Waist
£22.99
Playful Promises
Playful Promises Red Graphic Embroidered Thong
£18.00
Yours
Yours Plus Size Nude Medium Control Shaping Full Briefs
£14.00
New Look
New Look Navy Satin Look Micro Lace Thong
£3.99
British Boxers
British Boxers Women's Pack of Four Leopard Rose Bamboo Lace
£28.90
Marks & Spencer
M&S Isabella Embroidered Mesh Brazilian Knickers Black
£15.00
Ann Summers
Ann Summers Turquoise Lace Mesh Thong
£7.20
EGO
EGO Brown Faux Leather Beaded Thong Strap Mules
£27.00
Dorina
Dorina Pale Pink Sculpting High Waist Briefs
£20.00
SALE
revolve
Revolve Satin Boxer in Champagne
£43.32£65.72
Limited Collection
Limited Collection Plus Size Red Stripe Boxer Waist Trousers
£22.99
Yours
Yours Plus Size Navy Blue Ditsy Floral Full Briefs 5-Pack
£14.99
British Boxers
British Boxers Women's Pack of Four Rhubarb Sugar Hipster Boxer
£30.60
New Look
New Look Dark Purple Bow Mesh Lace Trim Thong
£3.49
Marks & Spencer
M&S Dark Brown Spot Lace Brazilian Knickers
£8.00
Playful Promises
Playful Promises Plus Size Black Strap Mesh Embroidered Thong
£18.00
Showing 48 of 482
Frequently Asked Questions
What underwear style is most comfortable for daily wear?▾
Highly personal, but mid-rise hipsters or briefs in cotton or modal are popular for all-day comfort. Seamless styles work best under fitted clothing. The key is finding something that doesn't dig in, ride up, or bunch. Our size guides per brand help get this right first time.
How often should I replace underwear?▾
Every 6-12 months depending on wear frequency. Signs: stretched elastic, faded colour, thinning fabric, loss of shape. Having 15-20 pairs in rotation ensures none are overworked. This is one category where new rather than preloved makes sense.
What underwear works best under tight-fitting clothes?▾
Seamless, bonded-edge underwear in a nude matching your skin tone. Thongs eliminate visible lines entirely. Laser-cut edges lie flat. Avoid lace edges, thick seams, or decorative details under figure-hugging garments, they show through more than you'd expect.