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 midsole enhances plating protection and comfort.

KSO IS BEST FOR: Running, Fitness Training, CrossFit, Light Trekking, Bouldering, Water Sports & Travel

Materials: UPPER - abrasion-resistant stretch polyamide fabric & Hypalon® straps SOLE- Vibram TC-1 performance rubber FOOTBED- Antimicrobial microfiber *Machine washable. Air dry. Weight: 5.7 oz. each, 11.4 oz. a pair