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RUNDERWEAR™ performance underwear is award-winning underwear designed by runners, for runners. Our mission - to create the world's best performing underwear for athletes across the globe.

The RUNDERWEAR™ Women’s Briefs are designed to give you maximum support with supreme comfort while running. Using our innovative technology means they are perfect for any level of runner and for any distance.

360° Seamless Technology

Our underwear range is constructed using 360° seamless technology. This means that our products are seamless and tag free – resulting in less irritation, no rubbing or digging into your skin and a revolutionary experience in comfort and performance, no matter when or where you use them.

Chafe-Free, Ergonomic Design

Our underwear is finished using functional flatlock edging. This type of fine stitching results in a premium finish, and underwear that stays in place and doesn’t ride up. Time after time, mile after mile – you’ll stay chafe-free, guaranteed.

Moisture-Wicking, Breathable Fabric

We use a technical fabric in our underwear range that quickly takes sweat aw