Design: SPEEDROLL Technology effortlessly propels you forward to enhance every stride In-Shoe Comfort: PWRRUN PB is a lightweight, pillowy soft cushion that allows you to move quick in comfort Durability & Traction: PWRTRAC outsole with 4.5mm lugs provides tremendous grip and protection on a variety of terrain Additional Details: Weight: 7.3 oz (207g) Heel-to-toe Offset: 6mm (33mm heel / 27mm forefoot) Trail outsole lug height: 4.5mm Sustainability: This style is vegan and contains recycled materials