New Balance Womens 990 running shoes feature a pigskin and mesh upper provides a lightweight and supportive fit. Reflective detailing enhances your visibility. ABZORB cushioning in the midfoot provides exceptional shock absorption. ENCAP midsole technology provides support and maximum durability. Dual Density Collar uses both a softer density foam against the foot for cushioning, and a firmer density foam for support. Polyurethane midsole offers durable cushioning and effective resistance to compression set. Blown Rubber Forefoot for lightweight cushioning. Ndurance rubber compound for maximum outsole durability. Medicare HCPCS code A5500 Diabetic shoe.