DETAILS Compression-molded toe box made with our NEW XF rubber 3D expandable molded heel with XF rubber Xtreme Friction rubber is our newest and stickiest formula Patented Concave Sole Downturned and twisted profile for power and precision Low profile and pointy toe box Stretchy and breathable tongue Arch Flex for support and a better fit Low Volume version offers a narrower toe box, smaller heel cup, and a lower profile Vegan friendly TECHNICAL DETAILS Stiffness Soft Upper Material Syn Flex Closure Hook-and-loop Rubber Xtreme Friction, and [heel rand] Science Friction R2 Midsole 1.8mm molded polycarbonate midsole Profile Aggressive Asymmetrical Curvature Significant