The Breathable Mukluk is perfect for any paddling adventure. This mukluk is 100% breathable, waterproof up to the knee, and incorporates Chota's unique QuickLace System.™ The sole is made from 7mm vulcanized rubber for superior grip while the inner boot is fleece lined for warmth and comfort. The boot itself is held knee-high with a neoprene gasket and nylon cinch strap. This is a great product for paddling. Sizing is in standard men's shoe sizes. Women should consider a whole size down.