Engineered mesh construction, Partially gusseted tongue 40% Recycled polyester eyestay lining Heel pull tab Ortholite® hybrid sock liner Lightweight, resilient foam Zonal rubber placement for weight savings Durabrasion rubber outsole Vegan Upper mesh with 50% recycled polyester 87% Recycled polyester strobel board 100% recycled polyester sock liner top cloth Great for everyday running and walking