Men's Sitka Ambient 100 Vest 10496-600411 Our flagship active insulation piece, distilled down to a full-zip vest. Built with Primaloft Evolve, this vest provides unparalleled breathability when on the move without sacrificing core warmth once you've slowed your pace. The 20D ripstop outer will stand up to trails that wander through thick brush and the durable water repellent finish sheds light rain and snow. Zippered hand and chest pockets quickly stash your possibles. Features 100g Primaloft Evolve active insulation wicks moisture while retaining warmth Durable 20D Ripstop Nylon face fabric Durable water repellent finish sheds light precipitation 4-way stretch enhances mobility Zippered chest and hand pockets Men's Sitka Ambient 100 Vest