Whether you glide or spin, the ultra-lightweight adizero Shot-put anchors your throwing power with a sturdy midfoot strap, heel and toe wraps, and foam insole cushioning. Features INLAY FOAM INSOLE FOR COMFORT OUTSOLE CARBON RUBBER FOR DURABILITY UPPER MEDIAL MIDFOOT SUPPORT STRAP FOR ARCH AND MIDFOOT SUPPORT COOLEVER MESH AND LINING HAS A CLOVER SHAPED YARN TO MANAGE HEAT AND SWEAT