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
353 products
Marks & Spencer
M&S 3 Pack Cotton Rich Brazilian Knickers
£8.00
British Boxers
British Boxers Light Blue Stripe Pyjama Trousers
£65.00
Marks & Spencer
M&S Regular-Fit Cotton Modal Thongs in Red Mix
£12.00
British Boxers
British Boxers Coral Shire Nightshirt in Coral
£95.00
British Boxers
British Boxers Coral Shire Pyjama Trousers in Coral
£65.00
British Boxers
British Boxers Dark Grey Brushed Cotton Dressing Gown
£125.00
British Boxers
British Boxers Light Blue Striped Brushed Cotton Nightshirt
£95.00
British Boxers
British Boxers Dark Grey Brushed Cotton Nightshirt
£95.00
British Boxers
British Boxers Teal Herringbone Dressing Gown
£125.00
British Boxers
British Boxers Dark Green Tartan Pyjama Trousers
£65.00
British Boxers
British Boxers Light Pink Brushed Cotton Pyjama Trousers
£65.00
British Boxers
British Boxers Light Blue Striped Brushed Cotton Pyjama Set
£115.00
British Boxers
British Boxers Navy Stripe Nightshirt for Women
£31.50
British Boxers
British Boxers Pink Stripe Brushed Cotton Dressing Gown
£125.00
British Boxers
British Boxers Women's Thyme Cotton Zip-up Hoodie in Pale Green
£69.00
British Boxers
British Boxers Dark Blue Cotton Hipster Briefs Pack of Three
£28.00
British Boxers
British Boxers Heather Grey Cotton Oversized Hoodie
£69.00
British Boxers
British Boxers Navy Cotton Oversized Hoodie
£69.00
British Boxers
British Boxers Pale Blue Cotton Lounge Sweatshirt
£52.00
British Boxers
British Boxers Dark Blue Cotton Zip-up Hoodie
£69.00
British Boxers
British Boxers Navy Cotton Lounge Sweatshirt
£52.00
British Boxers
British Boxers Dark Green Cotton Lounge Sweatshirt
£52.00
British Boxers
British Boxers Women's Pack of Three Multicolor Hipster Briefs
£28.00
British Boxers
British Boxers Multicolor Full Briefs Four Pack
£32.00
Showing 336 of 353
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.