The On Cloudsurfer Trail is On's first-ever trail running shoe powered by CloudTec Phase®. This computer-optimized technology delivers a smooth ride and energy return you'll feel from heel to toe, making light work of everyday trails and moderate inclines, rain or shine. The On Cloudsurfer Trail features the signature Missiongrip™ rubber outsole for support and stability on wet and dry surfaces, with a versatile lug pattern for added traction.