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
Ann Summers
Ann Summers Pink Floral Lace String Thong
£8.00
EGO
EGO Beige Faux Suede Thong Strap Wedge Heel, Women's Size UK 3
£27.00
revolve
Revolve Cassandra Slip Red Satin Mini Dress
£50.79
Yours
Yours Plus Size Green Ditsy Print Full Briefs 5 Pack
£14.99
British Boxers
British Boxers Women's Raspberry Stripe Brushed Cotton Nightshirt
£80.75
New Look
New Look Black Lace Trim Candy Cane Print Thong
£3.99
Marks & Spencer
M&S Raisin Mesh & Lace Low-Rise Miami Knickers
£10.00
Ann Summers
Ann Summers Pink Leopard Print Brazilian Briefs
£7.00
EGO
EGO Black Faux Leather Thong Strap Flat Sandal
£30.00
revolve
Revolve Fringe Benefits Slip Dress in Black
£88.13
Yours
Yours Plus Size Burgundy Red Animal Print Full Briefs 5 Pack
£14.99
British Boxers
British Boxers Women's Lerwick Check Brushed Cotton Pyjama
£55.25
New Look
New Look Pink Christmas Cocktail Print Lace Trim Thong
£3.99
Marks & Spencer
M&S Dark Brown Lace Thong
£8.00
EGO
EGO Tan Brown Faux Leather Thong Strap Flat Sandal
£30.00
Ann Summers
Ann Summers Light Pink Spotty Lace Brazilian Briefs
£7.80
Yours
Yours Plus Size Navy Blue Star Print Full Briefs 5 Pack
£14.99
British Boxers
British Boxers Women's "Sky Blue Herringbone" Brushed Cotton Nightshirt in Light Blue
£80.75
New Look
New Look Navy Polka Dot Patterned Micro Lace Thong
£3.49
Marks & Spencer
M&S 5 Pack Lace Tanga Thong Black
£16.00
EGO
EGO Taupe Faux Suede Gladiator Sandal
£30.00
Ann Summers
Ann Summers Tan Lace Brazilian Briefs
£8.00
Yours
Yours Plus Size Blue Seaside Full Briefs 5-Pack
£14.99
British Boxers
British Boxers Women's Seaglass Herringbone Bright Green Brushed
£55.25
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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.