The 4th generation of the Saucony ENDORPHIN PRO 4 Sneakers are designed for race day. They feature an upper made from premium PWRRUN HG foam, with a durable lower layer of PWRRUN PB that is bouncy and responsive. The XT-900 carbon rubber outsole provides excellent traction and durability. These shoes have a PWRRUN HG Upper, PWRRUN PB cushioning, a Lace Closure, a Carbon Fibre Plate, a Flat Knitted Tongue, and a Carbon Rubber Sole. Updated to combine PWRRUN HG with the lightweight propulsion of PWRRUN PB, these shoes are powered by two different PEBA-based foams for a snappy and responsive feel. The full-length carbon plate is tuned to give longitudinal stiffness and maximum efficiency, which combined with max stack dual foam propulsion and Saucony's SPEEDROLL technology, creates a forward-feeling motion that helps you achieve new personal bests. The upper features a silky-smooth heel liner and integrated tongue system for a comfortable, connected fit. Weight is 212g with a stack height of 39.5mm at the heel and 31.5mm at the forefoot, giving an offset of 8mm. This style is vegan and contains recycled materials. It features snappy SPEEDROLL technology for effortless speed and propulsive forward motion, a carbon plate for maximum energy return and instant turnover, and a silky-smooth heel liner and integrated tongue for a connected, comfortable fit. Designed for race day and speed training, the Saucony Endorphin Pro 4 features an engineered, breathable mesh upper with a FORMFIT design that offers a firm foothold. A carbon plate ensures longitudinal stiffness and boosts metabolic efficiency, while SPEEDROLL technology will propel you forward and help you achieve a personal best.