PRODUCT DESCRIPTION: The Endorphin Speed 2 is the definition of effortless performance. It mixes a lofty bed of PWRRUN cushioning with propulsive SPEEDROLL Technology, so you get more comfort and speed out of each stride. And with its stable platform and touch of guidance, you can count on lots of feel-good miles, every day of the week.Snugger fit with a trim new heel counter, more breathable mesh, soft suede detailing and anti-slip laces to lock it in.Race, train, or just hang in it. Runners love this max cushioned shoe for everyday runs, recovery between speed days and for added comfort and support anytime.If you want to go even faster, this shoe pairs great with Endorphin Speed 2 for training days or Endorphin Pro 2 for top performing race days. Features: XT-900 outsole with reinforced high-abrasion zones provides optimal traction and durability FORMFIT hugs the foot in 3D comfort and delivers our most personalized fit yet Lightweight mesh upper and improved lacing system offers enhanced breathability and a locked-in fit New trim heel counter provides a great fit with less weight Stable platform and structural design gently guide your stride A generous bed of PWRRUN cushioning provides a plush yet springy ride, perfect for any day of the week SPEEDROLL Technology propels you forward effortlessly, so you can run faster, not harder This style contains recycled materials. Structured Cushioning 4mm (38mm heel/34mm forefoot) Men's 10.4 oz. (296g) D-medium width