Nike Killshot 2 Leather Men's Shoes Inspired by our original tennis shoe, the Killshot 2 brings a fresh update with classic colors and a variety of textured leathers. To prove you're on top, the rubber gum sole adds the cherry on bottom. You get courtside attitude with a modern touch. Real and synthetic leather upper ages to soft perfection. Rubber gum sole adds a retro look and durable traction. Padded, low-cut collar looks sleek and feels great.