boston endorphin speed 4< endorphin

boston, are you ready?meet the power of the endorphin speed 4 – upgraded with boston style. why you’ll love itsmooth speedroll technology for effortless speed, smooth turnover and propulsive forward motionpwrrun pb foam is a true unicorn, offering the best combination of cushioning and energy return of any foam on the market. striking that ‘just right’ feeling – firm enough to propel, soft enough to cushionre-engineered winged nylon plate for vertical reinforcement while maintaining flexibility through the forefootspecsbest for: race run/speed runheel-to-toe offset: 8mm (36/28mm forefoot)weight: 8.2oz (233g)sustainability: this style is vegan and contains recycled materials