Features include: Recycled leather upper, Super Stitch thread on upper, High abrasion hot melt underlays, High abrasion mesh, Perforated tongue mesh for breathability, EVA Strobel board for added Comfort, Impact-ALG technology features a polyurethane airbag to provide superior cushioning and impact protection, Lightweight high rebound foam midsole for comfort and support, Lightweight absorption abrasion-resistant sticky rubber outsole, Parametric outsole pattern for tread.