Design: Vegan, engineered mesh upper made with recycled content Recycled content lining Partially gusseted tongue Heel pull tab for easy on-and-off Extended heel with billowed grooves provides smoother transitions In-Shoe Comfort: More precise internal collar foam for enhanced comfort Othrolite(R) Hybrid (recycled) sockliner All-new lightweight, resilient foam midsole Durability & Traction: Durabrasion rubber outsole features zonal rubber placement for weight savings and durability Additional Details: Weight: 8.9 oz / 252g 31mm heel / 27mm forefoot