Neutral, flat last for all day cragging comfort 4.3mm rubber is purpose-built for edging and molded for optimal consistency and performance Engineered Knit Technology tongue provides exceptional breathability, comfort and extra padding for crack climbing Internal Lace Protection System for crack climbing Medium-flex midsole adds support without sacrificing sensitivity Lateral stabilizer rands increase precision by keeping your foot from rolling over when pressure is applied to the outside or inside edges Highest grade European leather upper UnisexNeutral, flat last for all day cragging comfort 4.3mm rubber is purpose-built for edging and molded for optimal consistency and performance Engineered Knit Technology tongue provides exceptional breathability, comfort and extra padding for crack climbing Internal Lace Protection System for crack climbing Medium-flex midsole adds support without sacrificing sensitivity Lateral stabilizer rands increase precision by keeping your foot from rolling over when pressure is applied to the outside or inside edges Highest grade European leather upper Unisex | Black Diamond Equipment Aspect Climbing Shoes Size US 10