The Sitka Ambient 100 Vest is the ultimate lightweight insulation layer for those who demand warmth without bulk. Engineered with 100g Primaloft Evolve active insulation, this vest provides exceptional breathability and moisture management—keeping you warm as your pace slows and cool when you're on the move. The tough 20D ripstop nylon outer fabric with a durable water-repellent finish protects you from light rain and snow, while the four-way stretch construction delivers unrestricted mobility for dynamic outdoor activities. Zippered hand and chest pockets offer convenient storage for your essentials, keeping gear secure and accessible. At just 7.68 ounces, the Ambient 100 Vest is a perfect addition to any layering system, whether you're navigating brushy trails or waiting patiently in the stand.