Karhu’s Fusion 2. 0 sneakers pay homage to the brand’s original 1996 model that was rated the best running shoe in the collection. Today, they’re built for city exploring thanks to their premium mesh and suede uppers, while fulcrum technology underfoot provides cushioned comfort with every step. Mesh Uppers Suede Overlays Reflective Details Heel Pull Fulcrum Technology Rubber Outsole