The Saucony Endorphin Speed 4 is a neutral running shoe designed for performance with a weight of approximately 7.9 ounces for men's size 9 and a 8mm heel-to-toe offset. It features a mesh upper with zonal engineered durability and ventilation, an engineered winged nylon plate for increased torsional rigidity and flexibility during toe-off, and a new Super Responsive Sockliner for added comfort. The midsole uses PWRRUN PB cushioning, made of PEBA polymers, providing high energy return and responsiveness. The shoe has a medial width suitable for medium feet, accommodates arch types from average to high, and is constructed with sustainable, vegan materials. The design includes Speedroll technology to enhance forward propulsion and an integrated tongue for a secure fit.