Air Zoom Infinity Tour NEXT% 2 includes upgraded features such as, more spikes, flattened Zoom Air units, new foam, and upgraded internal fit pods in the heel. Infinity Tour features 2 more integrated spikes in the forefoot, now offering 6 for more grip. The spikes are placed under the Zoom Air units and are designed to compress with pressure for better energy return and added comfort throughout each round. The Air Zoom units are lower to the ground, offering better stability without sacrificing responsiveness. CMP foam offers stability as well, for a more consistent underfoot feel while internal fit pods in the heel provide all-day comfort and security. In addition to upgraded features, Infinity Tour offers a cushioned insole and an internal fit system that provides comfort and helps lock your foot in place. The upper is made with fly weave and stretch skin, providing lightweight strength and containment, as well as keeping water out and making the shoe easier to clean.