EVOLV Yosemite Bum Rock Climbing Shoe for Crack & Multi-Pitch Climbing

Sole material: Rubber - Trax 4.2 mm - ResoleableOuter material: Upper Material - Vegan, SyntheticClosure type: Lace-UpEU Size: 39.5 - US Size: 7A multi-pitch and crack climb specialist. Full-length 2-layer midsole and outsole for long days on small edges and for twisting into and out of cracks of all sizes. PSR 8.Evolv climbing shoes are not designed to be downsized. Evolv sizing uses three categories of fit: Max Performance. Ultra Snug. Use street shoe size. Performance. Snug. Add .5 to 1.0 sizes to street size. Comfort. Relaxed. Add 1.0 to 1.5 sizes to street size.PSR is a rock shoe selection tool that ranges from (1) sensitive/smearing to (10) powerful/edging. PSR 1-3. Highly sensitive for smearing and volumes. PSR 4-7. Versatile for smearing and edging. PSR 8-10. Powerful for small holds.Evolv shoes come in 2 different volumes. Low-Volume LV is designed for a maximum performance fit and lower-volume foot shapes. Medium-Volume MV is designed for a snug fit and average-volume foot shapes. flawless for everyday use. premium materials and excellent craftsmanship ensure long-lasting durability.