The Arc'teryx Atom LT Vest is a popular choice among women looking for a sleeveless lightweight vest. It is made from a combination of nylon and polyester, providing both durability and insulation. The vest features Coreloft synthetic insulation, which retains warmth even when wet. It also has zippered hand pockets and a high collar for added protection. The vest's slim fit design makes it a great layering piece for outdoor activities like hiking, climbing, or skiing. Stay warm and comfortable with this top-rated vest from Arc'teryx.