The Nike Pegasus 41 offers you highly responsive cushioning as well as energy return with less weight. Made with an improved mechanical mesh upper, for weight reduction and increased breathability, it's the ideal choice for you. The flexible cushioning offers you a lighter energy return, as it has dual Air Zoom units and the ReactX foam midsole. ReactX foam is designed to reduces carbon footprint by at least 43% in a pair of midsoles due to the reduced manufacturing process energy compared to previous React foam. Plus, they feature a plush collar, tongue and sock liner for comfort and safety application wherever you are.