Climbing skin of the future. Vacuum Base is the name of the high-end ski mountaineering skin by KOHLA Tirol. After two years of intensive testing and permanent new developments Kohla are able to present a revolutionary new skin technology. The update for fall 2014 is the about 20% lighter vacuum adhesive and the full abrasion proof layer. Simple and functional operating in all conditions makes the Vacuum Base skin the first choice for ambitioned ski-montaineers.