What is Runderwear™?

What is Runderwear™?

Runderwear is the original performance underwear for running. Our mission is to eliminate the discomfort caused by ill-fitting underwear and clothing and create performance running underwear, basewear and socks that are supremely comfortable and chafe-free.


Chafe-Free Guarantee

Runderwear’s whole ethos is about creating chafe-free performance clothing. Runderwear clothing has no side seams and is label-free to prevent irritation and rubbing. Runderwear technical fabric is extremely soft, breathable and highly effectively at wicking sweat away from the body, ensuring you remain chafe-free in ultimate comfort, no matter how many miles you run.

Seamless Design

All Runderwear clothing is created on a 360-degree machine that means no side seams for ultimate comfort and chafe-free running. Flatlock stitching means that edges are flat, eliminating irritation and rubbing and minimising VPL.

Moisture Wicking

The Runderwear technical Polyamide and Elastane fabric is lightweight and well-known for its highly effective properties to remove sweat from your skin, eliminating any irritation and ensuring you keep dry and can run chafe-free.

 

Breathable

The Runderwear technical Polyamide and Elastane fabric is lightweight and well-known for its highly effective properties to remove sweat from your skin, eliminating any irritation and ensuring you keep dry and can run chafe-free.

Ergonomically Designed

Runderwear is ergonomically designed using incredibly soft fabric, to move with your body for ultimate comfort.

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performance underwear
★ Read Our Reviews

Let customers speak for us

216 reviews
85%
(184)
9%
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2%
(5)
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1%
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Kiss Chaffing Goodbye!
They absolutely work well
Sizing - Lenght
Dear Sweaty Runner, thank you very much for your comments and we are glad you like the quality of the pants. I am sorry the length of the short boxers doesn't suit you. You are right that depending on where you chafe you might need a different garment. Short boxers would prevent chafing in the groin area, but not on the inner thigh as they don't reach that low. The long boxer would be better suited for chafing inner thighs!
Amazing socks
Perfect fitting