Description of La Sportiva Muira VS Climbing Shoes A high performance Velcro shoe for amazing edging control and pocket climbing performance Features: Easy to use Velcro system for easy on and off convenience Slingshot rand and power hinge system gives you the ultimate edging power Sticky Vibram® XS Grip rubber Leather upper Slip lasted construction PD75 last Sentex lining, unlined underfoot 4mm Vibram XS Grip sole 1.1mm Laspoflex midsole 9.52oz (270gm)