Design: Engineered air mesh upper ensures a comfortable, breathable fit Expertly crafted GlideRoll Rocker features dramatically sculpted bevel and toe spring geometries for effortless heel-to-toe transitions Lace-up closure for a secure fit In-Shoe Comfort: New DNA Tuned nitrogen-infused foam is created with dual-size cell technology to protect your body from impact Larger cells in the heel provide plush landings, while smaller cells in the forefoot invite responsive toe-offs Durability & Traction: RoadTack rubber outsole provides outstanding uphill and downhill traction, even on wet surfaces Additional Details: Weight: 10.5 oz Midsole Drop: 6 mm