CAP Barbell 20 lb Conditioning Vest enables you to add resistance to your workout, whether it is for aerobics or sports. Get more out of your cardio workout. Vest is weight-adjustable with each weight packet weighing approximately 0.75 lbs, and it fits both men and women due to the one-size-fit-all design. Features granulated steel shot packets that conform to the body, and neoprene padding for total body comfort. Weight adjusts from 0.75 lbs. to 20 lbs. Material: steel, nylon Color: Black Gender: Unisex Age: Adult