On was founded in 2010 in Zurich by Olivier Bernhard — a former Ironman and duathlon world champion — together with David Allemann and Caspar Coppetti. Bernhard had prototyped the first CloudTec sole by gluing cut sections of garden hose to the bottom of a running shoe; the hollow rubber pods compressed on landing and locked firm for push-off, and the idea scaled. The brand still runs its R&D out of Zurich and has been listed on the NYSE since September 2021.
The Ultralight Mid Sock is On's racing sock — an ultrafine-gauge yarn construction designed to feel like running sockless, with thick heel and toe padding and anti-blister patches where needed. Ankle coverage keeps dirt out on trail. Ultralight Mid Sock — ultrafine-gauge recycled polyamide, designed to feel like running sockless. Thick heel and toe padding, anti-blister patches.
Inside the On range, Ultralight Mid is the race-day sock: ultrafine gauge to cut weight and bulk inside racing shoes, targeted heel and toe padding for shoes like Cloudboom Strike and Cloudboom Max, and a close, seam-minimised fit designed not to add friction over 42 km.
Socks
CA$ 36
On was founded in 2010 in Zurich by Olivier Bernhard — a former Ironman and duathlon world champion — together with David Allemann and Caspar Coppetti. Bernhard had prototyped the first CloudTec sole by gluing cut sections of garden hose to the bottom of a running shoe; the hollow rubber pods compressed on landing and locked firm for push-off, and the idea scaled. The brand still runs its R&D out of Zurich and has been listed on the NYSE since September 2021.
The Ultralight Mid Sock is On's racing sock — an ultrafine-gauge yarn construction designed to feel like running sockless, with thick heel and toe padding and anti-blister patches where needed. Ankle coverage keeps dirt out on trail. Ultralight Mid Sock — ultrafine-gauge recycled polyamide, designed to feel like running sockless. Thick heel and toe padding, anti-blister patches.
Inside the On range, Ultralight Mid is the race-day sock: ultrafine gauge to cut weight and bulk inside racing shoes, targeted heel and toe padding for shoes like Cloudboom Strike and Cloudboom Max, and a close, seam-minimised fit designed not to add friction over 42 km.
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