Please click for the La Sportiva Size Conversion. Deliver power and sensitivity to the mountain with the high-performance La Sportiva Cobra Eco slipper! Ideal slipper for use on all types of rock and has the perfect blend of sensitivity and edging performance. ECO Idro-Perwanger biodegradable leather uses a metal-free eco-tanning process. Unlined. 0.8 mm LaspoFlex midsole. 3 mm FriXion ECO outsole offers a high level of grip and durability. Last: RL 45 Made in Italy. Measurements: Weight: 10 oz Product measurements were taken using size 42 (US Mens 9), width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.