The New Balance 1540 running shoe was developed to deliver the ultimate in comfort and control for the runner seeking the highest level of stability control. Synthetic/mesh upper. ACTEVAï¿½ midsole offers great flexibility and a featherweight cushion. ENCAPï¿½ EVA in the midsole with a tough polyurethane rim provides more support and durability. ROLLBARï¿½ with medial and lateral TPU posts offers ultimate motion control. ABZORBï¿½ adds cushioning and energy displacement. Blown rubber outsole. Removable insole. Wt. 14.8 oz.