1、Made of high quality 600D coated fabric material, firm, wear-resistant, heavy duty, with Max. loading up to 20KG. 2、It can adjust the weight of the iron bar or sandbag you carry with the vest to help you do strength training, it won't leak sand and has excellent quality. 3、With hook&loop design, you can easily adjust the size to make it fit your body. 4、The large round neck design and widened shoulder design make it more comfortable to wear. 5、The inner side has foam padding to prevent it from hurting you while exercising. Features: 1. Made of high quality 600D coated fabric material, firm, wear-resistant, heavy duty, with Max. loading up to 20KG. 2. It can adjust the weight of the iron bar or sandbag you carry with the vest to help you do strength training, it won't leak sand and has excellent quality. 3. With hook&loop design, you can easily adjust the size to make it fit your body. 4. The large round neck design and widened shoulder design make it more comfortable to wear. 5. The inner side has foam padding to prevent it from hurting you while exercising. Specifications: Material: 600D Coating Environment Friendly and Odorless Fabric Max. Load: 20KG Size: 30*5*40cm/11.81*1.97*15.75in(Approx.) Package include: 1 * Weighted Vest 4 * Sand Bag