The Men's Standard Mid Chelsea Snow MTE Boot from Vans The Standard Mid Chelsea Snow MTE is the downsized version of Vans' best-selling Standard Snow MTE snow boot. They're practical, packable, and wear-at-the-bar-able. These mid MTE boots feature: -Waterproof vulcanized lower -Waterproof seam-sealed construction -MTE All-Trac all-terrain rubber outsole -Stretch gore at the opening -Made with a mix of leather, suede, and synthetic materials.