Northwave Striker Carbon 5 Mountain Bike Shoes. Northwave loves to brag about their premium mountain bike shoe, the Striker Carbon 5...and for good reason. A pliable polyurethane synthetic leather upper has mesh inserts to keep you cool and dry even in the most grueling conditions. A speedlight 3D carbon sole is stiff and efficient, yet designed to work with the rubber lugged outer sole for scaling trails when you need to, or even portaging your cyclocross bike while running. Plus, Northwave's innovative S.B.S. ratchet closure works with two straps and the Omega Heel to hug your foot into a position of comfort, efficiency, and total endurance.