Matryx upper combaines multi-filament threads of Kevlar and tenacity polyamide to create a single layer of material that is lightweight, with better breathability and abrasion resistance. 100% recycled laces, 60% recycled tongue webbing, ETPU high rebound footbed, Floatpro Foam midsole for lightweight comfort that last. Vibram MegaGrip outsole for best traction and grip.