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
New Look
New Look Blue Microfibre High Waisted Thong
£3.00
Marks & Spencer
M&S 5 Pack Lace Tanga Thong Pink Mix
£16.00
EGO
EGO Brown Faux Suede Buckle Detail Thong Strap Gladiator Sandal
£30.00
Yours
Yours 5 Pack Brown & Pink Leopard Print Full Briefs
£14.99
British Boxers
British Boxers Women's Pink Tartan Brushed Cotton Pyjama Trousers
£55.25
New Look
New Look Pink Cotton Ruched Thong
£1.50
Marks & Spencer
M&S 4pk Cotton Rich High Leg Knickers Black Mix
£6.00
EGO
EGO Black Faux Leather Thong Strap Flat Slider Sandal
£30.00
Yours
Yours Plus Size Black & Pink Stripe Print Full Briefs 5 Pack
£14.99
British Boxers
British Boxers Purple Cotton Lounge Sweatshirt
£30.94
Marks & Spencer
M&S 5pk Cotton Modal Brazilian Knickers Dark Brown
£12.00
New Look
New Look Brown Leopard Print Lace Thong
£3.49
EGO
EGO Brown Faux Suede Thong Strap Kitten Heeled Mule
£26.00
Yours
Yours Plus Size Burgundy Red & Chocolate Brown Lace Full Briefs
£14.99
British Boxers
British Boxers Sky Blue Herringbone Brushed Cotton Pyjama
£55.25
Marks & Spencer
M&S 3pk Heavy Absorbency First Period Briefs Black
£14.00
New Look
New Look Black Floral Patterned Mesh Lace Brazilian Briefs
£3.49
EGO
EGO Black Patent Thong Strap Low Heeled Mule
£24.00
Yours
Yours Plus Size Red Microfibre Lace Full Briefs 2 Pack
£14.99
British Boxers
British Boxers Women's Pack of Four White Bamboo Full Briefs
£27.20
Marks & Spencer
M&S 5 Pack All Over Lace Brazilian Knickers Black Mix
£16.00
New Look
New Look Brown Floral Lace Thong
£2.99
EGO
EGO Taupe Faux Suede Kitten Heeled Mule, Women's Size UK 3
£26.00
Yours
Yours Plus Size Pink Heart Print Full Briefs 5 Pack
£14.99
Showing 96 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.