IPX Chassis: All new, molded Nylon chassis with metal teeth provides the ultimate board/boot connection. * Impact EVA: Takes the shock of landings and displaces it from your foot. * EVA foot-bed: 3D molded foot-bed with ergonomic contours. * Control Liner: Seamless molded tongue design and integrated J bars. * Zonal Lace System: Lacing system allows you to adjust lace tension.