Built with the highest grade European leather upper, the Black Diamond Aspect Rock Climbing Shoes balance comfort with performance using innovative designs that subtly set it apart. This flat-lasted, slightly asymmetrical lace-up is perfect for plugging gear at the cliff. Neutral, flat last for all day cragging comfort 4.3mm rubber is purpose-built for edging and molded for optimal consistency & performance Provides exceptional breathability, comfort & 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 foot from rollong over Highest grade European leather upper Unisex