Original Ninja Low (Black/Pewter, M - Mens 9-10 Womens 10-11) Maximal foot agility creates uncompromised barefoot experience Split toe pattern for ultimate grip-ability and true barefoot feel Form fitting 4-way stretch upper accommodates multiple widths and foot shapes Breathable & drainable upper fabric protects from elements Barefoot activities and exercise can help manage and mitigate stress and body fatigue