Amazon.com | UYN Nature Tune Shoes – Comfortable Merino Wool 。- UYN UNNER HERO shoes are the first shoes created from the sock thanks to a unique production technique. No seams and no pressure points for unprecedented comfort. - Made with the finest Merino wool to keep your feet at a comfortable temperature whatever the weather. - Waterproof yet breathable thanks to the ultra-elastic MEMBRAIN115 membrane placed in-between the two layers of the upper. - Naturally odor resistant - The collar can be raised for extra protection against the cold or folded up according to your style. - Top quality VIBRAM sole delivers stability and grip even on wet and slippery surfaces. - The midsole made of Super-lightweight EVA offers high cushioning power and is 30% lighter than standard EVA midsoles on the market - Machine washable100% sustainably made in Italy with zero waste and no microplastics pollution