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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

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    Yours 5 Pack Plus Size Red Christmas Print Full Briefs
    Yours

    Yours Plus Size Red Christmas Print Full Briefs 5 Pack

    £14.99
    Marks & Spencer M&S 3pk Cotton Rich Hipster Knickers Black
    Marks & Spencer

    M&S 3pk Cotton Rich Hipster Knickers Black

    £8.00
    New Look Women's Red Bow Embroidered Mesh Lace Trim Thong New Look
    New Look

    New Look Red Bow Embroidered Mesh Lace Trim Thong

    £1.50
    British Boxers British Boxers Women's Pack of Four "Juniper" Bamboo Hipster Boxer Briefs
    British Boxers

    British Boxers Women's Pack of Four Hipster Boxer Briefs

    £18.36
    EGO Barrett Gem Thong Strap Heeled Mule In Black Faux Suede, Women's Size UK 3
    EGO

    EGO Glamorous Thong Strap Heeled Mule in Black

    £29.00
    Yours 3 Pack Plus Size Red Lace Back High Waisted Knickers
    Yours

    Yours Plus Size Red Lace Back High Waisted Knickers 3 Pack

    £14.99
    Marks & Spencer M&S 2 Pack Ida Lace Miami Knickers Black
    Marks & Spencer

    M&S 2 Pack Ida Lace Miami Knickers Black

    £12.00
    New Look Women's Pink Bow Print Micro Lace Top Thong New Look
    New Look

    New Look Pink Bow Print Micro Lace Thong

    £3.49
    British Boxers British Boxers Women's Pack of Three "Citron Blue" Cotton Full Briefs
    British Boxers

    British Boxers Women's Pack of Three Citron Blue Cotton Full

    £21.25
    EGO Bunni Thong Strap Detail Wedge Heel In Black Faux Leather, Women's Size UK 3
    EGO

    EGO Black Thong Strap Detail Wedge Heel in Black Faux Leather

    £27.00
    Yours 3 Pack Plus Size Natural Brown Leopard Lace Full Briefs
    Yours

    Yours Plus Size Brown Leopard Lace Full Briefs 3 Pack

    £14.99
    Marks & Spencer M&S Savannah Satin Tanga Brazilian Knickers Light Buff
    Marks & Spencer

    M&S Light Buff Satin Tanga Brazilian Knickers

    £6.00
    New Look Women's Pink With Cotton In Your Dreams Pointelle Thong New Look
    New Look

    New Look Pink Pointelle Thong

    £3.99
    British Boxers British Boxers Women's "Westwood Pink" Stripe Brushed Cotton Nightshirt in Light Pink
    British Boxers

    British Boxers Women's 'Westwood' Light Pink Brushed Cotton

    £80.75
    EGO Aspen Gem Thong Strap Detail Heeled Mule In White Faux Leather, Women's Size UK 3
    EGO

    EGO Gem Thong Strap Detail Heeled Mule in White

    £27.00
    Yours 3 Pack Curve Green & Burgundy Red Lace Full Briefs
    Yours

    Yours Curve Green & Burgundy Red Lace Full Briefs 3 Pack

    £14.99
    Marks & Spencer M&S 5pk Cotton Rich Lycra® High Leg Knickers Blueberry
    Marks & Spencer

    M&S 5pk Cotton Rich Lycra® High Leg Knickers Blueberry

    £8.00
    New Look Women's Red Floral Lace Panelled Diamante Charm Thong New Look
    New Look

    New Look Red Floral Lace Panelled Diamante Charm Thong

    £2.50
    British Boxers British Boxers Women's 'Montrose' Check Brushed Cotton Nightshirt
    British Boxers

    British Boxers Women's 'Montrose' Check Brushed Cotton Nightshirt

    £60.57
    EGO CAVE KH, Women's Size UK 3
    EGO

    EGO Elegant Over-the-Knee Boots in Green

    £48.00
    Yours Plus Size White Seamless Light Control Full Briefs
    Yours

    Yours Plus Size White Seamless Light Control Full Briefs

    £12.00
    Marks & Spencer M&S 3pk Jasmine Lace High Waisted High Leg Knickers Dark Raspberry
    Marks & Spencer

    M&S 3pk Jasmine Lace High Waisted High Leg Knickers Dark

    £7.00
    New Look Women's Bright Red Bow Embroidered Thong New Look
    New Look

    New Look Bright Red Bow Embroidered Thong

    £7.99
    British Boxers British Boxers Women's "Chalk" Stripe Brushed Cotton Nightshirt in Grey
    British Boxers

    British Boxers Women's Grey Stripe Brushed Cotton Nightshirt

    £40.38

    Showing 144 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.