Khombu | Shoes | Khombu Mens Flume 2 Waterproof Boots Size M 。Temperature rated for up to -20 degrees below zero Durable Odorless Thermolite insole Waterproof Sturdy, slip Resistant Bottom Synthetic Leather & Rubber upper, Rubber Slip Resistant Sol Snow and ice are no match for the Khombu Flume 2 Waterproof winter boot. These boots have Thermolite insulation and are temperature rated to protect your feed in temperatures up to -20 degrees below zero. The rubber sturdy grip bottom lets you venture out in confidence. With the trusted Khombu name, you know your feet will be protected this winter season