The Carhartt Women's Sandstone Mock Neck Vest is a popular choice for those seeking a high-visibility thermal activewear vest. Made from a blend of cotton and polyester, this vest offers excellent insulation and durability. It features a mock neck collar, a zippered front, and multiple pockets for convenient storage. The high-visibility color ensures that you stay visible in low-light conditions, making it ideal for outdoor work or activities that require enhanced safety.