Please click for the La Sportiva Size Conversion. The La Sportiva Otaki climbing shoe offers high-level performance on a variety of rocky conditions, and is the superior choice for use on technical edging and vertical overhanging terrain. Laser-cut leather and microfiber upper for reduced stitching and bulk. Built on the PD 75 slip last. Hook-and-loop closure for an adjustable and secure fit. Pacific lining only in front. 1.1mm LaspoFlex midsole features P3 patented technology for a down-turned performance fit for slicing and dicing where needed. Patented S-Heel construction provides optimal heel hooking maneuverability and the perfect heel cup fit. 4mm Vibram XS Edge for long-lasting durability and grip. Made in Italy. Measurements: Weight: 12 oz Product measurements were taken using size 44.5 (US Mens 11), width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.