The Keen Pyrenees will accompany you at every turn. The nubuck leather upper and waterproof KEEN.DRY membrane provide best protection for your hikes. KEEN.DRYA waterproof, breathable membrane that lets vapour out without letting water in. Perspiration and moisture naturally produced by the foot are able to escape, while at the same time keeping the wet out and the feet dry. S3Shock, Suspension and Stability - S3 technology is designed to support the foot during shocks, absorbing shock and making it less likely to buckle. ECO anti-odourThe insoles are infused with probiotic technology that naturally breaks down odour in sweat without heavy metals or hazardous chemicals.