adidas Unisex Sprintstar Track Spike | Marathon Sports。Adidas sprintstar white shoes size 11.5 nwot no flaws from website: Designed for high-performance sprint racing between 60 and 400 m, the Sprintstar are adidas´ premium offering in the track spikes market. Weighing less than 200 grams, the Sprintstar provide a number of technical features that will make you explode in the track. The secret of the Sprintstar is their Pebax® plate outsole, designed with great resistance to wear in mind. This six-spike plate on the forefoot increases energy return and responsiveness, as dependable on each race’s start as during the sprint. The Sprintstar´s ultra-lightweight design owes itself to a Sprintweb upper, whose mesh is highly breathable and thin to give these shoes maximum ventilation.