BEST FOR: High-performance fitness walking PERFORMANCE TESTED: Proven in lab testing to provide low deceleration, braking, and impact forces + Very high perceived cushioning INNOVATIVE TECH: Full-length RE-ZORB responsive cushioning for shock absorption + impact protection, plus lightweight RE-ZORB LITE pads in the forefoot and heel MATERIALS: Breathable air mesh + Padded tongue and heel collar + Durable molded heel overlay CLOSURE: Secure lace-up front WEIGHT: 244 g/8.6 oz per shoe INSOLE: Anatomical heel with extra arch support + heel support and partially recycled EVA MIDSOLE: Lightweight EVA for soft cushioning + Full-length RE-ZORB responsive cushioning OUTSOLE: Durable two-piece rubber sole for grip + Built-in compression channels for shock absorption