Please click for the La Sportiva Size Conversion. Help minimize environmental impact with the Mythos Eco climbing shoe! Leather upper. Slip lasted construction. Unlined lining. 95 percent of shoe comes from recycled materials (soles, laces, webbing, tongue padding) and offers reduced impact (metal-free tanning, biodegradable leather, water-based adhesives). 1.1 mm Laspoflex midsole. 4 mm recycled rubber outsole. Made in Italy. Measurements: Weight: 11 oz Product measurements were taken using size 43.5 (US Mens 10.5), width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.