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Designed with gynaecologists and created in Europe, Underdays is a female-founded underwear brand born from the question: why is it so hard to find functional, high-quality underwear that doesn’t compromise on style? After all, life might not always be comfortable, but your underwear should be. By combining supreme comfort with style, Underdays gives you the basics, revolutionised. Women’s health is at the forefront of Underdays’ innovation: created with 50 rounds of user testing from solution-driven fabrics, all models are based on feedback and problem points collected from women, by women.  Fabrics are sourced responsibly and garments are created in independent, certified factories. All materials are independently certified by OEKO-TEX, meaning that Underdays underwear is free from harmful substances. And, committed to female health, 1% of all sales is donated to Bloody Good Period, a charity that provides period supplies and menstrual education to asylum seekers, refugees and those less likely to access them.

Discover a range of revolutionary underwear from Underdays on woo

Shop Underdays on woo

Underdays

short_description

No more scratchy lace that irritates your skin or non-breathable styles that dig in, and constantly move around. Instead, we use sensually sheer stretch mesh and supremely soft silky microfibre for a barely-there feeling you’ll adore.   **We've restocked our bestselling lingerie style and added extra stretch to make it even more comfortable.**

Discover the Underdays Lingerie Brief - perfect for everyday wear. Made with high-quality materials, these briefs provide comfort and style.

Underdays Lingerie Brief for Everyday Wear

The Lingerie Brief

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UnderdaysThe Lingerie Brief

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About Underdays

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LemonadeSynergy High Waisted Brazilian Brief

LemonadeThe Picot Lace V-Brazilian

UnderdaysThe Workout Thong

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UnderdaysThe Lingerie Thong

LemonadeThe Picot Lace V-Brazilian

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LemonadeThe Trilogy Lace Brief

UnderdaysThe Everyday Thong

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LemonadeThe Super Soft Mesh Thong

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Welcome to the woo-niverse. Sign up for 10% off your first order