Construction - Made from reinforced nylon and polyester for a high durability. The adjustable weighted vest is perfect for increasing the intensity and efficiency in all physical activities Weight Included ? Each packet is filled with 4 lbs bags of iron ore fines (total 20 bags) that you could adjust total weight by removing or adding Individual weight packets. Comfort - Suggested waist size 41"~50". With pockets located on the front and back of the vest. The adjustable waist belt and padded shoulder straps provide a comfortable and secure fit. Thread the long and short waist belts through the metal rings, looping them around to the front and securely attaching them together. If you encounter any issues while wearing it, feel free to contact us directly for assistance. Flexibility - Ideal as additional resistance for any body weight training. Anchor hooks designed for parachute run training. Includes reflective stripes for easy visibility If used during walking or running Buy With Confidence - We take pride in the products we provide; thus, we can assure you that getting the CAPHAUS Adjustable Weighted Vest is worth your money! Notice: The product images shown are for illustration purposes only and may not be an exact representation of the product.