Note the flaw Construction Breathable, antimicrobial mesh upper keeps feet feeling cool and fresh; no-sew taped reinforcements secure the perfect fit. Hands-free speed-lacing system locks feet in instantly. There's a pair of classic laces in the box too. CloudTec® Zero-Gravity foam and a high-propulsion Speedboard® keep you light on your feet. Molded heel design holds your foot securely in place so you can focus on getting where you need to be. Higher midsoles and a closed-channel forefoot ensure soft, stable landings. Molded heel design holds feet securely in place. Abrasion pads on outsoles add traction. Rubber outsole for durability