The shoe made almost entirely from natural or recycled materials that gives you an unparalleled wearing experience. The upper is made completely without seams and envelops your foot in the exceptional comfort of Merino wool, one of nature's most powerful temperature regulators. The skin doesn't sweat and doesn't overheat, but always remains at a constant temperature. Slip on the UYN Nature Tune shoes and feel the energy of nature, even in the middle of the city.