New Balance Women's FuelCell 996 V4.5 Tennis ShoeNew Balance's FuelCell 996v4. 5 is an eye catching women's tennis shoe that offers a full length FuelCell midsole to provide energy return and a fast, propulsive feel. Ndure technology in the upper and a rugged Ndurance outsole give this tennis sneaker the durability to stand up to your most intense matches. 8 mm drop; due to variances created during the development and manufacturing processes, all references to 8 mm drop are approximate FuelCell foam