New Balance 996v4.5 Men's Tennis Shoes Black/Deep Violet : Speed kills in tennis. Whether you're blazing the baseline or charging the net, the New Balance 996v4.5 gets you there faster. Enjoy a quick and snappy ride on the full-length FuelCell midsole. NDure technology in the upper and a rugged Ndurance outsole support your most aggressive movements. In the New Balance 996v4.5, you're covered from heel to toe with everything you need to compete on the court. Shoe Technology Upper: Hypoknit upper provides stretch and support in key areas. NDure upper technology increases durability. Midsole: FuelCell foam delivers a propulsive feel to drive you forward. Outsole: Full-length Ndurance outsole offers reliable traction and durability for extended use.