SHOE WEIGHTS! Slide these adjustable weights over the shoes and secure them with the oversized strap. The soft, flexible .5lb. Flex-Metal weights conform to the shape of the foot, so you can incorporate them into leg lifts, jumps, and stair drills. Neoprene/Nylon. Fits most adult shoe sizes. One pair includes 3lbs. of weight. Adjustable from .5lb. to 1.5lbs. per foot. Lime Green. 4 lbs.