Breathable, antimicrobial mesh uppers keep you feeling cool and fresh; no-sew taped reinforcements secure the perfect fit Hands-free speed-lacing system locks you in instantly; if you want classic laces, there's a pair of those in the box too CloudTec® Zero-Gravity foam and the high-propulsion Speedboard® keep you light on your feet; higher midsoles and a closed-channel forefoot ensure soft, stable landings