Please click for the La Sportiva Size Conversion. The La Sportiva Solution is a high performance climbing shoe purposely built to provide the solution for modern bouldering problems. Best In Gear award winner Rock and Ice. Editors Choice Climbing Magazine. Product Design award 2006 International Forum Design. Combination leather and Lorica upper. Slip Lasted construction. PD80 last. HF lining (toebox and arch area only). Patent-pending P3 Performance Power Platform retains the downturned shape of the shoe. Molded 3D heel cup for support. Adjustable Fast Closure System for a precise fit. Patent-pending Lock Harness for secure heel hooking. 1.1mm Laspoflex midsole (toe area only). 4mm Vibram XS Grip rubber outsole. Weight: 18 oz. Imported. Measurements: Weight: 12 oz Product measurements were taken using size 42 (US Men's 9), width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.