Whether You're A Newbie Runner Or A Veteran, You Need A Pair Of Shoes That Will Give You The Responsiveness And Cushioning You Need And The Versatility You Demand. In The Midsole Of These Shoes Is Nitro Foam, Puma's Advanced Technology That Provides Responsiveness And Cushioning In A Lightweight Package. On The Outsole There's Pumagrip, Puma's Durable Rubber Compound That Provides All-Surface Traction. Not To Mention A Dual-Color Mesh Upper That Provides Breathability And A Futuristic Look. So, If You're Looking To Take Your Running To The Next Level, Look No Further.