Experience the evolution of speed with the Saucony Endorphin Speed 4. This shoe is designed for effortless speed and addictive forward motion, making it ideal for race days and tempo runs. It features smooth SPEEDROLL technology for consistent propulsion and PWRRUN PB cushioning for a responsive and energized ride. The improved design includes a zonal engineered mesh upper and an integrated tongue for a secure and connected fit. The re-engineered plate provides vertical reinforcement for torsional rigidity while maintaining forefoot flexibility. It's best for race runs and speed runs, offering a cushioned experience with a PWRRUN PB sockliner and an 8mm offset. The shoe weighs 8.2oz (233g) for men and is available in US Men's sizes 7-15 and US Women's sizes 5-12. This style is also vegan and contains recycled materials. Key features include PWRRUN PB foam for a 'just right' feel, firm enough to propel yet soft enough to cushion, and a re-engineered winged nylon plate for enhanced performance.