Shoe Irons Champion Series Adjustable in 1/2 lb. increments Includes three 1/2 lb. weights per foot (1.5 lbs. total per foot) - additional weights may be purchased separately Weights conform to the shape of the foot and are held securely in place by a proprietary strapping system Weights are positioned further from the knee and hip, so less weight is required for the same effect Weights are positioned further from the knee and hip, so less weight is required for the same effect