Top performer quite stiff climbing shoe from Mad Rock with a high level of comfort glove fitting, due to the high performance stretchy materials and technical features. Compression-molded toe box made with the Science Friction 3.0 rubber  Patented Concave Sole Downturned and twisted profile for power and precision Low profile and pointy toe box  Stretchy and breathable tongue  3D expandable molded heel for a versatile fit made with climbing grade rubber Arch Flex for support and a better fit  High Volume version offers a wider toe box, bigger heel cup, and a boxier profile  Vegan Friendly Technical Features Midsole: 1.8mm polycarbonate midsole Sole: Science Friction 3.0, Science Friction R2 (heel rand) Level: Intermediante/Expert Recommended Use: Boulder, Sport climbing Materials Upper: Syn Flex Midsole: polycarbonate Sole: rubber