Xero Shoes Alpine Boot Made with 200 grams of polyester insulation and a waterproof membrane, the Xero Shoes Alpine Boot ($160) were built to withstand freezing temperature. These over-the-ankle, lace-up boots have a natural fit so your toes can wiggle freely, "XERO-drop" soles to improve posture and balance, and a dual-chevron tread pattern for optimal grip. Image Source: rei.com Xero Shoes Alpine Boot $160 from rei.com Buy Now