Everlast Nevatear Boxing 100-lb Heavy Bag Specially blended filler mix of sanitized synthetic and natural fibers provide resilient shock absorbency. Premium synthetic leather with reinforced webbing along with superior heavy bag construction provides long lasting durability and functionality. Heavy duty nylon straps provide security and safety, while the double end loop provides increased functionality. 40-lb bag approximately 41" in height with a 12.5" diameter; 60-lb bag approximately 46.5" in height with a 13.25" diameter; 80-lb bag approximately 53" in height with a 13.25" diameter; 100-lb bag approximately 59" in height with a 13.25" diameter.