The Arc'teryx Women's Atom LT Vest is a top-rated sleeveless insulated lightweight safety activewear vest that is perfect for outdoor adventures. This vest is made from a combination of nylon and polyester, providing excellent insulation and breathability. It features Coreloft synthetic insulation, which retains warmth even when wet. The Atom LT Vest has a trim fit, ensuring a flattering silhouette. It also has zippered hand pockets and an internal chest pocket for convenient storage. The vest is designed to be lightweight and packable, making it ideal for travel or backpacking. With its high-quality materials and thoughtful design, the Arc'teryx Women's Atom LT Vest is a popular choice among women who prioritize comfort and performance.