The Nautilus 12 lb Weighted Vest is an adjustable fitness training vest designed for weight lifting. Made of neoprene material, this vest has a maximum weight capacity of 12 lb and features reflective elements for safety. With a sleek black color and a one-size-fits-all design, this vest is suitable for unisex adults looking to enhance their strength training exercises. The Nautilus brand ensures quality and durability, making it a reliable choice for fitness enthusiasts seeking to add resistance to their workouts. Costco return