Please click for the La Sportiva Size Conversion. Always be ready for the rugged terrain with the lightweight, breathable, and versatile style of the La Sportiva Pyramid GTX medium-duty hiking boot. Perforated nubuck leather upper is abrasion resistant. Mid-cut trail boot is ideal for the backpacker who needs a waterproof boot that can support moderate loads. Lace-up closure for a secure fit. Nano Cell Technology provides structure to the shoe and works with Gore-Tex Surround aeration channels within the footbed and midsole for excellent venting performance. STB control system integrates Gore-Tex Surround ventilation outlets to create an incredibly stable and breathable environment. PU TechLite toe and heel counters. Gore-Tex Surround waterproof lining helps keep out the wet elements while providing a breathable, more comfortable foot environment. 5mm Ortholite insole offers superior cushioning, support, and comfort. Compression-molded EVA midsole for long-lasting shock absorption and features TPU inserts and Gore-Tex Surround aeration channels. Vibram XS Trek outsole with Impact Brake System and Frixion Blue provides traction and grip on a variety of terrains. Mens Tempo 2 last. Imported. Measurements: Weight: 1 lb 3 oz Shaft: 4 1 2 in Product measurements were taken using size 44.5 (US Mens 11), width Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.