Our View – Scarpa Spin Race:The Scarpa Spin Race is the pinnacle of performance in trail running shoes for shorter distances. A lightweight shoe that guarantees precision and versatility on the most rocky and uneven terrain. From vertical K to 30k, this is your race day shoe. The Spin Race has a Matryx Micro upper made up of 48% recycled yarn and Dyneema for strong abrasion resistance and breathability. The NBS lace lock allows a simple and adjustable fit for enhanced comfort. Additional support and durability comes from the 5D printed PU EXO cage and toe bumper. Helping to provide both sensitivity and precision. Speed and performance comes from the Spring Foam midsole. A nitrogen blown foam with advanced structure to provide progressive cushioning and outstanding elastic return and rebound during you run. You feel the ground but not the impact. A 3.5mm Vibram® Megagrip outsole tops this package off to provide lightweight grip and traction on technical terrain, with 1mm PU rock plate for increased underfoot protection. This is a born fast light speed training & racing shoe. Specifications – Scarpa Spin Race: Spring Foam providing outstanding elastic return, rebound and cushioning Matryx Micro upper for breathability and durability with 5D printed PU for additional support and protection. NBS lace lock system for hassle free adjustment with lace pocket Mid sole - Spring Foam - providing progressive cushioning and outstanding elastic return and rebound during you run Sole - Vibram Spin S Race Megagrip - Extraordinary traction on mixed terrain with 1mm PU rock plate for added underfoot protection. Upper - Matryx Micro - Made up of 48% recycled yarn and Dyneema for strong abrasion resistance and breathability Drop - 4mm Stack - Heel 18mm - Toe 14mm Weight - 430g per pair size 42 Scarpa Spin Race