Drop 0 / Weight 190g /Stack Height 6.5mm Minimal design. Maximum performance. Vapor Glove 3 Luna Leather combines sock-like feel with soft, full-grain leather. Add to that a Vibram® sole that provides nearly zero ground-to-foot separation. Extremely flexible, flat or drop zero, with a very low weight and only 6.5 mm. of stack height. The fit is the closest thing to a sock.