Adidas F10 IN - adidas F10 IN - Men's It's one of the planet's fastest boots. And now the adidas F10 IN is even lighter and faster. This boot required an ultra-light synthetic upper and asymmetrical lacing to enlarge the kicking surface. Inside, die-cut EVA comfortably cushions without adding much weight. The non-marking rubber outsole brings durability and traction for speed on indoor surfaces. Lightly padded collar and extra heel cushioning for overall comfort. AgION anti-microbial treated lining stops odors and prevents bacterial and fungal growth.