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Runderwear Longest Day 2026

Embrace the season, embrace your potential while supporting a great cause! Join the longest day of the year, challenge yourself to walk or run your furthest distance ever - every step counts towards better fitness and better health!

Runderwear Longest Day 2026 · 21 June 2026 ·

Closes 21/08/2026

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We are the UK's only testicular, ovarian and germ cell cancer charity. Our mission is to stop young adults dying from testicular, ovarian and germ cell cancer - we do this through raising awareness with our life-saving cancer campaigns, engaging young adults with our digital education programmes.

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The Runderwear Longest Day - in aid of The Robin Cancer Trust.

Embrace the Season, and embrace your potential while supporting a great cause!

Join us for a celebration of movement and wellbeing. On the longest day of the year, challenge yourself to walk or run your furthest distance ever with The Runderwear Longest Day. This non-competitive, social event is about personal goals, supporting an incredible cause, and enjoying the summer sunshine.

Testicular Cancer affects 2,400 men every year in the UK, but it's 95% curable if caught early - so every step counts towards helping The Robin Cancer Trust create conversations around men’s health using humour, honesty, and human stories to break stigma and save lives.

Please help fundraise to support their life-saving mission!

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