The Marucci Elite Bat Pack series is the toughest batpack on the market. It uses heavy duty ballistic nylon in it's construction. The bag is designed for both players and coaches. The bag has a slide in compartment that will hold a laptop. It also has a school and office supply compartment. These two features are what make it ideal for coaches as well. There are a total of eight compartments on this backpack. In addition, the bag has a metal fence hanging clip. The Marucci Elite Bat pack says it all in the name. It is truly elite. There is no stronger batpack available on the market. This bag line is also from the up and coming Marucci company. Their name has quickly become synonymous with top quality. Every piece of equipment they produce has quickly become regarded as one of the best in the industry. So, if you are looking for baseball or softball equipment, you should start and end with the Marucci brand.