A high-mileage trainer designed for the over pronator seeking ultimate stability and smooth transition. ABZORB in heel, forefoot and strobel board is New Balance's top of the line foam material with excellent cushioning and compression set properties. A blend of DuPont Engage Isoprene rubber and proprietary materials provides the ultimate ride. ACTEVA in midsole is superior light weight foam with exceptional durability. Made with DuPont Engage. 12% lighter than standard foam. ROLLBAR GR in midsole is TPU media and/or lateral post with composite plate designed to minimize rearfoot movement (pronation and supination). When combined with TS2 provides the ultimate in motion control. PU post for maximum motion control. Nlock integrated lacing and webbing system provides optimal fit, support and security. Ndurance in outsole is rubber compound for maximum durability in high-wear areas. 360 reflectivity for night time safety. Phantom Liner reduces abrasion and discomfort. Ortholite insert for enhanced cushioning. Made in USA.