The Karbon McKinley Jacket provides top-notch waterproof protection. The fabric is a 3-ply and rated at 20K, so you can ride in even the wettest conditions without worry. Since the McKinley Jacket is a shell it offers tons of versatility. You can wear it all year long just by changing up your layers underneath. For the ultimate in comfort, the McKinley Jacket is made with stretch material. You can bend, jump, twist, and stretch without feeling restricted.