New Balance Men's MR1223 Running Shoe 100% Synthetic and mesh Lightning Dry collar wicks moisture away to help keep your feet dry and comfortable NLOCK is an integrated lacing and webbing system that provides optimal fit, support and security Dual-density collar uses both a softer density foam against the foot for cushioning, and a firmer density foam for support The medial EXTENDED WEB is a lengthened Stability Web delivering midfoot support, increased stability, and mild pronation control TS2 is a transitional support system with multi-density medial support which creates a smooth transition from heel strike to toe-off