Helps shift the center of gravity to aid in repositioning the spine, maintaining a more normal, upright posture. Can help relieve pain created by constant on-the-job flexion.Waist straps hold weight pouch more firmly in place, while crisscross design keeps straps from sliding off rounded shoulders. Features navy color, sporty look, improved compliance. To size, measure from inferior angle of scapula, over the shoulder to the axilla, at chest level. Includes one 1 lb. and three 1/4 lb. weights and exercise booklet. Latex free.