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 Chafe free
//  Seamless
//  Moisture wicking

How to Pick a Tri Suit - Features and Benefits to Look Out For

How to Pick a Tri Suit - Features and Benefits to Look Out For
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A look at the features and benefits to look out for when buying a tri suit

2018 Marathon Heroes - Liam McHugh

2018 Marathon Heroes - Liam McHugh
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Liam McHugh is running the London Marathon this year to raise money for the Cystic Fibrosis Trust.

2018 Marathon Heroes - Rachel Ashton

2018 Marathon Heroes - Rachel Ashton
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In the first of our Marathon Hero features, this is Rachel's story of how and why she is raising money for the National Autistic Society by running the London Marathon.

Runderwear Endurance Riding

Runderwear Endurance Riding
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We were really pleased to hear from Jill Thorburn, a GB endurance Rider, who gave us an update on a fantastic season for her and her horse Toby.  It is...

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performance underwear
★ Read Our Reviews

Let customers speak for us

1818 reviews
2 minutes ago - Men's Runderwear Brief
Mr james holloway said: Runnings briefs

No chaffing these are great. Excellent support.

Julia Jeffries said: Amazing

After trying many types of pants these are def the best on the market

Natalie said: Ace!

I use these for gym and cycling and they are super comfy and flattering too!! Highly recommend. You can't put a price on that!

Karin Hofmeijer said: Runderwear running hipster

Bought first at the triathlon show.. loved it so ordered another one. Good fit no more wedgies recommend them to all runners

Elaine Haver said: Sceptical

I didn’t have much belief that these would be as good as people had said in the reviews as the material is quite thick and I was sure they would rub me raw like others I’ve tried. How wrong could I be .... Incredibly comfy and zero chafing Don’t move where they shouldn’t and don’t roll down when I run either. Really glad I bought them and will be buying more.