Smart 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
6 products
Marks & Spencer
M&S Khaki Mesh Brazilian Knickers 3-Pack
£10.00
EGO
EGO Cream Faux Leather Beaded Thong Strap Low Heeled Mule
£27.00
Marks & Spencer
M&S Cotton Rich Tanga Thongs in Black
£8.00
EGO
EGO Black Thong Strap Heeled Mule in Faux Leather
£30.00
EGO
EGO Chic Nude Patent Thong Strap Heeled Mule in Beige
£30.00
EGO
EGO Black Thong Strap Detail Wedge Heel in Black Faux Leather
£27.00
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.