“The Alpine overall is an amazing boot for the cold. ” – Jason N. Enjoy that crisp winter weather in the Alpine – your fully-waterproof, lightweight, minimalist snow boot Now you don’t need to sacrifice comfort and natural movement when the temperature starts to fall and snow is in the air (and on the ground). Waterproof, cozy, and warm! The Alpine keeps the wet out with a fully seam-sealed inner bootie and a waterproof membrane in the boot’s upper. The insulated polyester fleece lining keeps those piggies nice and warm. And a heat-reflective insole adds to the winter-friendly comfort. And, yes, you can remove the insole for an even more “barefoot” feeling. The Alpine has 200g of insulation so they should keep your feet warm no matter where your adventures take you. Lightweight and grippy A men’s 9 weighs just 14.5 ounces each, a luggy tread gives you sure-footed traction, and a flexible, non-elevated (zero-drop) sole lets your foot move naturally. Plus, the Alpine is made from 100% vegan-friendly materials. Whether you wear the Alpine for a romp in the snow or after you slip off your ski boots, remember… Life-changing comfort and superior performance come from using your feet naturally. That’s what Xero Shoes let you do. Natural Fit. Natural Motion. Natural Feel. Plus Xero Shoes are backed with a 5,000-mile sole warranty.