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 Light Blue Daisy Mesh Thong
£1.50
British Boxers
British Boxers Blue Brushed Cotton Pyjama Trousers
£39.00
Yours
Yours Plus Size Teal Green Snake Print Full Briefs 5 Pack
£14.99
Marks & Spencer
M&S 3pk Jasmine Lace Miami Knickers Dark Wine
£10.00
New Look
New Look Black Ribbed Scallop Edge Brazilian Briefs
£2.50
British Boxers
British Boxers Light Grey Striped Nightshirt
£47.50
Yours
Yours Plus Size Brown Animal Heart High Waisted Full Briefs 5
£14.99
Marks & Spencer
M&S 2 Pack Asta Rib High Leg Knickers White
£12.00
New Look
New Look Bright Pink Animal Pattern Lace Thong
£1.50
British Boxers
British Boxers Light Pink Brushed Cotton Pyjama Trousers
£32.50
Yours
Yours Plus Size Purple Ditsy Print Full Briefs 5 Pack
£14.99
Marks & Spencer
M&S 5pk Cotton Rich Lycra® High Leg Knickers Blueberry
£8.00
New Look
New Look White Floral Lace Brazilian Briefs
£5.39
British Boxers
British Boxers Women's Multicolor Hipster Briefs Four Pack
£36.00
Yours
Yours Plus Size Pink Celestial Print Full Briefs 5-Pack
£14.99
Marks & Spencer
M&S 2 Pack Amelia Lace Cotton Rich Shaping Knickers Black
£12.00
New Look
New Look Dark Brown Polka Dot Microfibre Lace Brazilian Briefs
£3.99
British Boxers
British Boxers Light Grey Stripe Pyjama Trousers
£32.50
Yours
Yours Plus Size Pink & Navy Blue Floral Full Briefs 5-Pack
£14.99
Marks & Spencer
M&S 3 Pack Jasmine Lace Trim Full Briefs Chocolate Mix
£10.00
New Look
New Look White Daisy Mesh Thong
£3.49
British Boxers
British Boxers Light Pink Brushed Cotton Nightshirt
£47.50
Yours
Yours Plus Size Pink & Navy Blue Floral Butterfly Full Briefs 5
£14.99
Marks & Spencer
M&S 5pk Microfibre High Leg Knickers Grey Mix
£12.00
Showing 240 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.