'- Suede, leather, or nubuck 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-ALGâ„¢ 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