For athletes

With Altra’s signature FootShape fit

2 kilometres (26 miles 385 yards) involved in running a marathon seems daunting and too difficult to contemplate

Made of tough TPU

and everything you need to get after it

Women's On Cloudsurfer 2 Brand_Fusion For athletesOn's fan favourite Cloudsurfer 2, evolved. The On Cloudsurfer 2 features refined CloudTec Phase cushioning for a smooth ride for your daily runs. The upper boasts increased breathability, whilst maintaining a secure hold of the foot thanks to embroidered overlays for support. Finite Element Analysis was utilised when constructing the outsole to discover the most optimal geometry, granting runners the sweet spot between lightweight and durable.