Down the hill, through the mud pit & under the barbed wire. & that’s just obstacle 1. The Teva Sphere Speed was inspired by the unpredictable world of Obstacle Races & the athletes that are crazy enough to take them on. It features our Teva Sphere technology, which uses a spherical heel & support pods to improve your stride, reduce impact & promote stability on unpredictable terrain – which obstacle races have in spades. Throw in quick dry materials, a lightweight design & a grippy sole & you’ll be able to cross “shoes” off your list of things to worry about for your next race.