The Saucony Endorphin Pro 4 in White/ Mutant is engineered to elevate your running performance, whether for race day or tempo runs. It features PWRRUN HG foam for enhanced energy efficiency and a powerful stride. A durable PWRRUN PB layer provides a snappy, bouncy feel, complemented by Speedroll technology and a full-length carbon fiber plate for quicker turnover and sustained momentum. This shoe prioritizes comfort and durability with an ultra-thin XT-900 carbon rubber outsole for excellent traction and a breathable mesh upper with a flat knit tongue for a comfortable, sock-like fit, allowing you to focus on your run. The racing shoe of superlatives, the new Endorphin Pro 4 from Saucony is completely designed for speed. Its powerful sole, made of PWRRUN cushioning and a carbon plate, delivers tremendous speed and propulsion. The 39.5 mm stack height pushes the limits for a unique running experience. Speedroll technology optimizes your running technique by aligning your foot under your body's center of gravity. Saucony's fastest racehorse uncompromisingly takes first place in the Endorphin series. Highlights include a lightweight upper made from adaptable and breathable mesh, a mighty PWRRUN PB midsole with sophisticated energy transfer for fast-paced sessions, and an S-shaped carbon fiber plate combined with SPEEDROLL technology for a steady and energetic forward push. The rocker construction reinforces a smooth rolling motion, while the thin, adaptable tongue comfortably wraps the top of the foot. It also features elastic laces, weighs 212g with an 8mm drop, and has a durable outsole with plenty of traction. This racing shoe is designed to push you to peak performance, ideal for marathons and improving personal best times. Its outstanding design and responsive PWRRUN Foam with a carbon fiber plate offer a wonderfully reactive running sensation with impressive dynamics. Incredibly light, incredibly fast, guaranteed runner's high!