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
New Look
New Look Plus Size White Daisy Embroidered High Waist Thong
£9.99
British Boxers
British Boxers Women's Pack of Four 'Juniper' Bamboo High Leg
£14.28
EGO
EGO Brown Faux Leather Beaded Thong Strap Mules
£27.00
Ann Summers
Ann Summers Light Pink Spotty Lace Brazilian Briefs
£7.80
Dorina
Dorina Pale Pink Sculpting High Waist Briefs
£20.00
revolve
Revolve Floral Print Mini Skirt in Diaz Aqua
£51.53
Marks & Spencer
M&S Dark Blue Full Brief Knickers 10-Pack
£16.00
New Look
New Look Brown Smooth Stretch Microfibre High Waisted Thong
£3.00
British Boxers
British Boxers Women's Pack of Three Citron Blue Cotton Full
£21.25
EGO
EGO Beige Faux Suede Thong Strap Wedge Heel, Women's Size UK 3
£27.00
Ann Summers
Ann Summers Tan Lace Brazilian Briefs
£8.00
SALE
revolve
Revolve Satin Boxer in Champagne
£43.32£65.72
Marks & Spencer
M&S Khaki Mesh Brazilian Knickers 3-Pack
£10.00
New Look
New Look Pale Yellow Ribbed Seamless Thong
£7.99
British Boxers
British Boxers Women's 'Westwood' Light Pink Brushed Cotton
£80.75
EGO
EGO Black Faux Leather Thong Strap Flat Sandal
£30.00
revolve
Revolve Cassandra Slip Red Satin Mini Dress
£50.79
Marks & Spencer
M&S 5pk Cotton Rich Printed Brazilian Knickers Dusky Pink
£12.00
New Look
New Look Red Lace Trim Micro Thong
£1.50
British Boxers
British Boxers Turquoise Stripe Cotton Nightshirt
£45.39
EGO
EGO Tan Brown Faux Leather Thong Strap Flat Sandal
£30.00
revolve
Revolve Fringe Benefits Slip Dress in Black
£88.13
Marks & Spencer
M&S 5pk Pure Cotton High Leg Knickers Black
£8.00
New Look
New Look White Microfibre Short Briefs
£4.49
Showing 48 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.