Runderwear Longest Day Challenge
Sun, Jun 21
|Anywhere in the world!
Embrace the season, and embrace your potential while supporting a great cause! On Sunday 21st June, celebrate the longest day of the year by taking on your own adventure, your way.


Time & Location
Jun 21, 2026, 12:00 AM – 11:50 PM
Anywhere in the world!
About the Event
Embrace the season, and embrace your potential while supporting a great cause!
On Sunday 21st June, celebrate the longest day of the year by taking on your own adventure, your way. Challenge yourself to walk or run your furthest distance ever with The Runderwear Longest Day. This non-competitive, virutal event is about personal goals, supporting an incredible cause and enjoying the summer sunshine.
Whether you're walking 5K with friends, running your favourite trail at sunrise, or tackling an ultra-distance adventure, this challenge is about making the most of every minute of daylight while helping to save young lives!
This year, Runderwear are teaming up with The Robin Cancer Trust to raise vital funds and awareness for testicular, ovarian and germ cell cancers.
Please set-up a JustGiving fundraising page and supporting The Robin Cancer Trust, you'll help fund life-saving cancer awareness and education to aid earlier diagnosis and support for young people affected by these cancers. Every…
