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    1. Home
    2. /Women
    3. /Clothing
    4. /Underwear & Socks
    5. /Underwear

    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

    Filter & Sort

    -
    New Look Women's Black No Vpl Short Briefs New Look
    New Look

    New Look Black Microfibre Short Briefs

    £4.49
    British Boxers British Boxers Women's "Coral Shire" Square Brushed Cotton Pyjama Trousers in Coral
    British Boxers

    British Boxers Coral Shire Pyjama Trousers in Coral

    £65.00
    Yours 5 Pack Plus Size Blue Leopard Print High Leg Knickers
    Yours

    Yours Plus Size Blue Leopard Print High Leg Knickers 5 Pack

    £14.99
    Marks & Spencer M&S Clara High Leg Knickers Cream
    Marks & Spencer

    M&S Cream Papertouch High Leg Knickers

    £8.00
    British Boxers British Boxers Women's 'Whitby Jet' Herringone Brused Cotton Dressing Gown in Dark Grey
    British Boxers

    British Boxers Dark Grey Brushed Cotton Dressing Gown

    £125.00
    New Look Women's White Lace Criss Cross Detail Thong New Look
    New Look

    New Look White Lace Thong

    £3.99
    Yours 5 Pack Plus Size Navy Blue Leopard Print Full Briefs
    Yours

    Yours Plus Size Navy Blue Leopard Print Full Briefs 5-Pack

    £14.99
    Marks & Spencer M&S 5pk Cotton Rich Printed Brazilian Knickers White
    Marks & Spencer

    M&S 5pk Cotton Rich Printed Brazilian Knickers White

    £12.00
    British Boxers British Boxers Women's 'Westwood' Blue Stripe Brushed Cotton Nightshirt in Light Blue
    British Boxers

    British Boxers Light Blue Striped Brushed Cotton Nightshirt

    £95.00
    New Look Women's Black Non-Wired Floral Lace Thong Bodysuit New Look
    New Look

    New Look Black Floral Lace Thong Bodysuit

    £19.99
    Yours Plus Size 5 Pack Black Stretch Full Briefs
    Yours

    Yours Plus Size Black Stretch Full Briefs 5 Pack

    £14.99
    Marks & Spencer M&S 5pk Microfibre Brazilian Knickers Brown Mix
    Marks & Spencer

    M&S Microfibre Brazilian Knickers Five-Pack Brown Mix

    £12.00
    British Boxers British Boxers Women's 'Whitby Jet' Herringbone Brushed Cotton Nightshirt in Dark Grey
    British Boxers

    British Boxers Dark Grey Brushed Cotton Nightshirt

    £95.00
    New Look Women's White Non-Wired Floral Lace Thong Bodysuit New Look
    New Look

    New Look White Floral Lace Bodysuit

    £19.99
    Yours 5 Pack Plus Size Natural Brown Paisley Print Briefs
    Yours

    Yours Plus Size Brown Paisley Print Briefs 5-Pack

    £14.99
    Marks & Spencer M&S 3pk Amelia Lace Full Briefs Opaline
    Marks & Spencer

    M&S Opaline Lace Full Briefs 3-Pack

    £14.00
    British Boxers British Boxers Women's "Stornoway" Herringbone Brushed Cotton Dressing Gown in Teal
    British Boxers

    British Boxers Teal Herringbone Dressing Gown

    £125.00
    New Look Women's Bright Pink Smooth Lace Trim Thong New Look
    New Look

    New Look Bright Pink Microfibre Lace Trim Thong

    £2.99
    Yours 5 Pack Plus Size Pink & Black Floral Full Briefs
    Yours

    Yours Plus Size Pink & Black Floral Full Briefs 5 Pack

    £14.99
    Marks & Spencer M&S 5pk Pure Cotton Full Briefs Blue Mix
    Marks & Spencer

    M&S Blue Mix Cotton Full Briefs 5-Pack

    £8.00
    British Boxers British Boxers Women's "Jura" Tartan Brushed Cotton Pyjama Trousers in Dark Green
    British Boxers

    British Boxers Dark Green Tartan Pyjama Trousers

    £65.00
    New Look Women's Bright Pink Floral Lace Brazilian Briefs New Look
    New Look

    New Look Bright Pink Floral Lace Brazilian Briefs

    £3.99
    Yours Plus Size 5 Pack Black Floral Print Full Briefs
    Yours

    Yours Plus Size Black Floral Print Full Briefs 5-Pack

    £14.99
    Marks & Spencer M&S Clara Papertouch Tanga Thong Cream
    Marks & Spencer

    M&S Cream Papertouch Tanga Thong

    £8.00

    Showing 408 of 482

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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.