iRun Sport Weighted Vest is designed for strength training and crossfitters. All our vests come with removable cast iron weights, adjustable velcro belt and instructions. The vest will stay snug and fit on you, it gives you not only the comfort, but also multiple protection. All our iron weights are removable and it is easy to add the perfect resistance to your workout. Adjustable Design Velcro Belt gives you multi Protection during training Come with Optional Removable Weights, can be removed due to Different Functional Exercises One Size Fits Most, Comfortable Material, Easy to set up Perfect Weighted Vest for Cross Fit and Fitness Exercises Manufactory Warranty Included, USA Pride Products