Worn only once on indoor track. Almost perfect condition. Open to offers. IN-SHOE COMFORT: Ultralight PWRRUN PB gives you incredible spring and energy return FORMFIT hugs the foot in 3D comfort, while enhanced heel support and anti-slip laces keep you secure at any speed A single-layer engineered mesh upper keeps the shoe light and breathable DURABILITY & TRACTION: SPEEDROLL Technology propels you forward effortlessly Signature S-curve carbon-fiber plate makes for powerful transitions XT-900 outsole with reinforced high-abrasion zones provides optimal traction and durability