Experience the evolution of speed with the Saucony Endorphin Speed 4, an upgraded iteration that retains the familiar aesthetic of the Speed 3 while introducing key enhancements for an elevated running experience. Distinguished by its redesigned knit and mesh upper, the Endorphin Speed 4 prioritizes fit, comfort, and durability. The padded knit tongue ensures a secure fit, adapting to a diverse range of foot shapes and sizes for an optimized running experience. At the heart of the shoe is a significant midsole innovation, featuring Saucony’s high-performance dual foam construction in the form of PWRRUNHG. This powerhouse material is renowned for its unmatched rebound, promising a responsive and energizing ride with every step. The durable and grippy outsole is designed for traction and protection on various surfaces. Flex grooves enhance flexibility and responsiveness, while strategically placed rubber pods offer grip and safeguard high-wear areas. Shoes, Boots & Trainers by Saucony Neutral support Low-profile design Lace-up fastening Padded tongue and cuff Signature Saucony branding SPEEDROLL technology promotes a propulsive forward motion PWRRUN PB foam provides lightweight, rebound-returning cushioning Durable rubber outsole Textured grip tread Saucony Endorphin Speed 4 Shoes The Saucony Endorphin Speed 4 are ideal for runners looking to improve their performance with each stride. Designed for daily and speed training, they offer a perfect combination of cushioning and energy return. Surface: Asphalt Shoe type: Neutral Use: Training, Speed training Weight: 233g Drop: 8mm (36mm/28mm) Plate: Curved nylon chassis Damping: PWRRUN PB