In just over a year, the KSO has become our most popular model for men.  Featuring a thin, abrasion-resistant stretch nylon and breathable mesh upper that wraps your entire forefoot to "Keep Stuff Out."  A single hook-and-loop closure helps secure the fit.  A non-marking 3.5mm Vibram TC1 performance rubber sole is razor-siped for a sure grip, and a 2mm EVA insole enhances plating protection and comfort.

KSO IS BEST FOR: Running, Light Trekking, Climbing/Bouldering, Running, Fitness, After Sport, Water Sports, Yoga/Pilates & Travel