The Arc'teryx Women's Atom LT Vest is a sleeveless activewear vest that offers lightweight warmth and protection. It is made with a waterproof and breathable fabric that keeps you dry and comfortable in any weather. The vest features synthetic insulation that provides warmth even when wet, making it perfect for outdoor activities. With its sleek design and functional features, this vest is a great addition to your activewear collection. Stay warm and mobile with the Arc'teryx Women's Atom LT Vest.