Ready for an extreme adventure? Try these new lightweight generation of men's GEL-LYTE33 2 athletic inspired shoes. Made of mesh upper with lightweight synthetic material for extra comfort. Provides a lace-up closure for a secure fit. Footbed features F.A.S.T. (Featherlight ASICS Speed Technology ) and Asics' new breakthrough technology for a better performance. Aligned to the joints of the foot, Guidance Line technology gives the asymmetrical two-density midsole flexibility for an adaptive and responsive workout.