The Endorphin Pro was engineered with elite athletes and built to give runners a fair advantage at the starting line. Featuring propulsive SPEEDROLL Technology, our signature S-curve carbon fiber plate combines with ultralight PWRRUN PB cushioning for powerful race-day performance. And weighing in at just 7.5oz, it's undeniable. These shoes weren’t made for chasing personal bests. They were made for smashing them. OVERVIEW Take a peek at the fastest shoe we've ever built. SPEEDROLL Technology propels you forward with the feeling of continuous momentum, so you can run faster, not harder. Signature S-curve carbon fiber plate makes for powerful transitions and provides maximum SPEEDROLL effect. PWRRUN PB, a PEBA-based superfoam, is our lightest, most springy performance cushioning ever. FORMFIT hugs the foot in 3D comfort and delivers our most personalized fit yet. A single-layer engineered mesh upper keeps the shoe light and breathable. XT-900 outsole with reinforced high-abrasion zones provides optimal traction and durability. Size 7 Our items are display models, returns, overstocks, shelf pulls, etc. They have been in the retail environment and while they are new, they have been handled by customers. There is a chance they might have minor cosmetic conditions from being handled or tried on. This item may not come in the original box. This is the reason you can purchase a high quality item for a VERY low price. Check our feedback!!