Please click here for the La Sportiva Size Conversion.Hike through three seasons in the long-lasting Trango Alp Evo GTX La Sportiva® boot!2.8mm Idro-Perwanger® and PU leather upper for long lasting construction.Subskin Injection™ molds the upper chassis without stitching or inserts.Lace-up closure for snug fit.PU constructed toe and heel. TPU crampon reinforcement in back.Gore-Tex® performance comfort lining keeps feet dry.7mm graded Nylon® insole.EVA midsole for lightweight comfort. La Sportiva One by Vibram® outsole with Impact Brake System™. Made in Italy.Measurements: Heel Height: 1 1⁄2 in Weight: 2 lbs Shaft: 7 in Platform Height: 1⁄2 inProduct measurements were taken using size 45 (US Men's 11.5), width D - Medium. Please note that measurements may vary by size.