Details From tempo workouts to race day, the Saucony men's Endorphin Speed makes running faster feel easier. With a flexible nylon plate and ultralight, springy PWRRUN PB cushioning, it's a versatile take on speed-driven performance. And with plenty of durability to boot, you have a pair of shoes that can go the distance over the course of your run, and your season. The Endorphin Speed was a Runner's World Editor's Choice for 2020. Upper FORMFIT hugs the foot in 3D comfort and delivers their most personalized fit yet. Engineered mesh keeps the upper light and breathable Midsole PWRRUN PB: PEBA-based superfoam, is their lightest, most springy performance cushioning ever. Full-length, flexible nylon plate makes this shoe equally runnable for speed workouts or race day. SPEEDROLL: Technology propels you forward with the feeling of continuous momentum, so you can run faster, not harder. Outsole XT-900 outsole with reinforced high-abrasion zones provides optimal traction and durability Heel 35.5mm Large heel counter for a secure foot feel Forefoot 27.5mm Offset 8mm Width D Weight 7.8oz (221g) Saucony Endorphin Speed Men's