The Saucony Endorphin Pro 4 is a high-performance running shoe meticulously engineered to enhance speed and efficiency for dedicated athletes. This model introduces a groundbreaking dual-cushioning system by combining PWRRUN PB and PWRRUN HG foams in the midsole, delivering exceptional energy return and responsiveness. Ideal for race days and high-performance training sessions, these shoes are designed to support athletes aiming for personal bests across various distances. Product Highlights: The Speedroll technology creates effortless speed and forward motion. A trusted carbon plate which provides smooth turnover. A smooth heel-liner and integrated tongue for a secure fit. Composition: Refer to the product label.