Technical GORE-TEX Ski & Snowboard Winter Mittens. Pro-Caliber durability and the Warmth to MatchUp, down, overnight, you name it. The Burton [ak] 3L GORE-TEX Oven Mitten System has you covered, literally. It's a three-piece system that sets you up for climbing, descending, and cold evenings at camp. They're everything you need for warm dry hands on routine backcountry days, extended missions, and the stormiest of lift-serve days. Pro-level materials mean you can count on these mitts for the durability to get after it, season after season.This is high-performance, pro-grade gear for the most demanding conditions and riders.