We use cookies to improve your experience. Learn more about our cookie policy

    SO-ME
    WomenMenBrandsEdits
    Clothing
    • Activewear
    • Dresses
    • Nightwear & Loungewear
    • One-Pieces
    • Outerwear
    • Outfit Sets
    • Shirts & Tops
    • Shorts
    • Skirts
    • Suits
    • Swimwear
    • Trousers & Jeans
    • Underwear & Socks
    Accessories
    • Belts
    • Gloves & Mittens
    • Hair Accessories
    • Hats
    • Scarves & Snoods
    • Sunglasses
    • Ties
    Bags
    • Handbags
    • Wallets & Money Clips
    Jewellery
    • Anklets
    • Bracelets
    • Earrings
    • Necklaces
    • Rings
    • Watches
    Shoes→
    Clothing
    • Activewear
    • Nightwear & Loungewear
    • Outerwear
    • Outfit Sets
    • Shirts & Tops
    • Shorts
    • Skirts
    • Suits
    • Swimwear
    • Trousers & Jeans
    • Underwear & Socks
    Accessories
    • Belts
    • Gloves & Mittens
    • Hats
    • Scarves & Snoods
    • Sunglasses
    • Ties
    Bags
    • Handbags
    • Wallets & Money Clips
    Jewellery
    • Bracelets
    • Earrings
    • Necklaces
    • Rings
    • Watches
    Shoes→
    SO-ME
    Women
    ClothingActivewearDressesNightwear & LoungewearOne-PiecesOuterwearOutfit SetsShirts & TopsShortsSkirtsSuitsSwimwearTrousers & JeansUnderwear & Socks
    AccessoriesBeltsGloves & MittensHair AccessoriesHatsScarves & SnoodsSunglassesTies
    BagsHandbagsWallets & Money Clips
    JewelleryAnkletsBraceletsEarringsNecklacesRingsWatches
    Shoes
    Men
    ClothingActivewearNightwear & LoungewearOuterwearOutfit SetsShirts & TopsShortsSkirtsSuitsSwimwearTrousers & JeansUnderwear & Socks
    AccessoriesBeltsGloves & MittensHatsScarves & SnoodsSunglassesTies
    BagsHandbagsWallets & Money Clips
    JewelleryBraceletsEarringsNecklacesRingsWatches
    Shoes
    HomeFavoritesChatProfile

    Help

    • Help Centre
    • Shipping policy
    • Returns policy
    • Refund policy
    • Payments
    • Contact

    About

    • Our Story
    • How ranking works
    • Edits
    • Become a partner
    • Careers

    Shop

    • Women
    • Men
    • All Genders
    • Brands

    Follow Us

    SO-MESO-ME

    © 2026 SO-ME. All rights reserved.

    SO-ME is a trading name of SO-ME App Ltd. Registered in England and Wales. Toward Studio, Cambrian Buildings, Cardiff CF10 5FL. SO-ME earns commission from qualifying purchases. This does not affect pricing.

    • Terms of Use|
    • Privacy Policy|
    • Cookies Policy|
    • Intellectual Property|
    • Affiliate Disclosure|
    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

    353 products

    Filter & Sort

    -
    British Boxers British Boxers Women's "Berwick" Check Brushed Cotton Nightshirt in Indigo
    British Boxers

    British Boxers Indigo Check Brushed Cotton Nightshirt

    £95.00
    New Look Women's Black Daisy Mesh Thong New Look
    New Look

    New Look Black Daisy Mesh Thong

    £3.49
    Marks & Spencer M&S 3 Pack Floral Lace Thongs Pink Mix
    Marks & Spencer

    M&S Floral Lace Thongs in Pink Mix

    £10.00
    British Boxers British Boxers Women's "Lomond" Tartan Brushed Cotton Dressing Gown in Bright Pink
    British Boxers

    British Boxers Bright Pink Tartan Dressing Gown

    £75.00
    New Look Women's White Ruched Back Brazilian Briefs New Look
    New Look

    New Look White Jersey Brazilian Briefs

    £3.49
    Marks & Spencer M&S 3pk Cotton Rich Tanga Thongs Black
    Marks & Spencer

    M&S Cotton Rich Tanga Thongs in Black

    £8.00
    British Boxers British Boxers Women's "Pink Cloud" Cotton Zip-up Hoodie in Light Pink
    British Boxers

    British Boxers Light Pink Cotton Zip-up Hoodie

    £69.00
    New Look Women's Black Floral-Lace Brazilian Briefs New Look
    New Look

    New Look Black Floral-Lace Brazilian Briefs

    £5.99
    Marks & Spencer M&S 4pk Cotton Rich High Leg Knickers Light Blue Mix
    Marks & Spencer

    M&S 4pk Cotton Rich High Leg Knickers Light Blue Mix

    £12.00
    British Boxers British Boxers Women's Pack of Four "Cherry Pie" Bamboo High Leg Knickers in Dark Pink
    British Boxers

    British Boxers Dark Pink Bamboo Knickers Pack of Four

    £28.00
    New Look Women's Plus Size Black Ribbed Seamless Thong Curves New Look
    New Look

    New Look Black Ribbed Seamless Thong for Plus Size

    £4.79
    Marks & Spencer M&S 4pk Cotton Rich High Leg Knickers Grey Mix
    Marks & Spencer

    M&S 4pk Cotton Rich High Leg Knickers Grey Mix

    £12.00
    British Boxers British Boxers Women's "Lomond" TartanBrushed Cotton Pyjamas in Bright Pink
    British Boxers

    British Boxers Bright Pink Tartan Pyjamas in Brushed Cotton

    £69.00
    New Look Women's Plus Size Pink High Waisted Lace Thong Curves New Look
    New Look

    New Look Pink Lace Thong for Plus Size Women

    £5.99
    Marks & Spencer M&S Mia Leopard Embroidery Miami Knickers Dark Chocolate
    Marks & Spencer

    M&S Mia Leopard Embroidery Miami Knickers Dark Chocolate

    £14.00
    British Boxers British Boxers Women's "Lomond" Tartan Brushed Cotton Nightshirt in Bright Pink
    British Boxers

    British Boxers Bright Pink Tartan Nightshirt

    £57.00
    New Look Women's White Lace Top Microfibre Thong New Look
    New Look

    New Look White Lace Thong in Microfibre

    £2.99
    Marks & Spencer M&S 2 Pack Ida Lace Thongs Light Apple
    Marks & Spencer

    M&S Floral Lace Thongs Pack Light Apple

    £12.00
    British Boxers British Boxers Women's "Field Green" Gingham Crisp Cotton Pyjama Set in Light Green
    British Boxers

    British Boxers Light Green Gingham Pyjama Set

    £115.00
    New Look Women's Dark Brown Seamless Shaping High Leg High Waisted Thong New Look
    New Look

    New Look Dark Brown Seamless High Leg Thong

    £9.99
    Marks & Spencer M&S 2 Pack Heavy Absorbency High Leg Period Knickers Grey Mix
    Marks & Spencer

    M&S 2 Pack Heavy Absorbency High Leg Period Knickers

    £12.00
    British Boxers British Boxers Women's "Boat Blue" Stripe Crisp Cotton Short Pyjama Set in Light Blue
    British Boxers

    British Boxers Light Blue Stripe Cotton Short Pyjama Set

    £105.00
    New Look Women's Black Seamless Shaping High Leg High Waisted Thong New Look
    New Look

    New Look Black Seamless Shaping High Leg Thong

    £9.99
    Marks & Spencer M&S 3 Pack Cotton Rich Brazilian Knickers Oatmeal Mix
    Marks & Spencer

    M&S Brazilian Knickers in Oatmeal Mix

    £8.00

    Showing 288 of 353

    • Previous
    • 1
    • …
    • 11
    • 12
    • 13
    • …
    • 15
    • Next

    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.