adidas CC Cosmic Boost Running Shoes Primeknit upper forefoot to mid - Optimal breathability for the feet. Climachill - Engineered from the forefoot to the midfoot to provide 360-degree ventilation and quick-drying, micro-perforated Aerocool fabric. AIRmesh rear quarter and heel - Sock-like structure with a seamless wrinkle-free fit. Adidas Boost technology - It bonds with the upper and creates an endless energy return like no other running shoe. EVA platform - Provides superior stability and a smooth, controlled stride.