Zero chafe. Maximum comfort. Total freedom.

Innovative running underwear designed with anti-chafing, breathable, and moisture-wicking fabrics to keep you focused on your goals.

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Discover Chafe-Free Running

At Runderwear, we design high-performance underwear, bras, and socks that help runners feel their best – mile after mile.

Trusted by athletes around the world, our chafe-free, breathable designs deliver unbeatable comfort and support, so you can focus on your run, not your kit. Whether you're training for your first 5K or running a marathon, experience the difference of the world’s best running underwear.

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ITRA Women’s Trail Running Day 2025

ITRA Women’s Trail Running Day 2025

On Sunday, 1st June, we joined trail runners from around the world in celebrating a major milestone for the sport we love – the first-ever ITRA Women’s Trail Running Day, a global initiative design...