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. 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. It may have been designed originally as a race day shoe, but its combination of comfort and durability has meant that the Saucony Endorphin Speed 4 in WhitePeel has become one of the best loved Tempo runnersfast trainers capable of everything form long distance cruises to PBs and races. The Saucony Endorphin Speed 4 blends three powerful elements in the midsole to give you that perfect feeling of propulsion and cushioning.PWRRUN PB is a peba based foam that offers a bouncy, lightweight feel, its harnessed by the winged nylon plate offering flexibility through the forefoot, but firmness through the vertical. Lastly Speedroll technology gives a smooth transition from landing to toe off, for a stride that feels, well perhaps not effortless, but easier. Weight 233g Stack height 36 28mm Offset 8mm Sustainability This style is vegan and contains recycled materials Smooth SPEEDROLL technology for effortless speed, smooth turnover, and propulsive forward motion PWRRUN PB foam strikes that 39just right39 feeling firm enough to propel, soft enough to cushion Reengineered winged nylon plate for vertical reinforcement while maintaining flexibility through the forefoot.