EVOLV Rave Rock Climbing Shoe for Training & Thin Crack Climbing

Sole material: Rubber - Trax 4.2 mm - ResoleableOuter material: Upper Material - LeatherClosure type: Pull-OnEU Size: 37 - US Size: 5A traditional flat slipper with full-length midsole for thin crack climbing and long training sessions. PSR 4.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. Perfect for everyday use. premium materials and excellent craftsmanship ensure long-lasting durability.