Within the last decade, snow bunnies have scaled a Matterhorn of high-style skiwear: from Chanel to Prada, every schusser can find something in which to strike a pose. But if you want to signal as high a regard for le sport as la mode, there is only Moncler. Founded in 1952 to outfit a mountaineering division of the French Boy Scouts, the label is known for high-tech waterproof fabrics, the lightest down insulation, shiny vinyl surfaces, and a puffy-down look (without Michelin Man heft). Lately, superstars like Balenciaga’s Nicolas Ghesquière and Junya Watanabe have collaborated to create options embellished with mink or Swarovski crystals—but technical innovation has remained paramount. In one of these jackets, you could still fall off a chairlift, but you’ll never be a fashion victim.