The Arc'teryx Women's Atom LT Vest is a versatile and lightweight sleeveless windproof thermal vest. It is made with a durable and breathable fabric that provides excellent insulation and weather protection. The vest features a full zip-up front and a high collar for added coverage. It also has zippered hand pockets and an internal chest pocket for convenient storage. The Atom LT Vest has a slim fit and a hip-length design, making it perfect for layering under a shell jacket or wearing on its own. Stay warm and comfortable with this high-performance vest from Arc'teryx.