Tecnica Size Chart The unmistakeable MOON BOOT after-ski design descends the mountain and becomes a fantastic urban mid trainer. A shoe with an edgy, sporty look, ideal for any activity. The warm, soft materials include a waterproof membrane to ensure the shoes are water-repellent as well as comfortable for cold winter days. Features: - Nylon/synthetic upper - Polyester lining - EVA rubber outsole - Waterproof *Sizing based off of US Men's sizes