The Body-Solid Weight Vest is great for adding Resistance to any Walking or Running Program outdoors or at home on a Treadmill or Elliptical. The Body-Solid Weight Vest comes with a connecter for Cable Machine Attachment. The Body-Solid Weight Vest comes in two sizes and permits adding resistance to any training routine without compromising biomechanics. A Weight Vest Increases Strength and Speed, Builds Power, Improves Respiration and Accelerates Weight Loss. FREE Shipping in the Contiguous United States.