The HATPAC backpack was designed to protect your best hat, laptop, and other valuables. The construction is not only functional but is also practical and comfortable to carry. Custom molded rigid outer shell and interior hat tray fits most hat sizes. Interior laptop pocket fits most laptops and/or tablets. Additional interior pockets to stash your headphones, passport, trophy buckle, etc... Exterior water bottle pocket and trolley strap to help you through those layovers. Built for the long haul so pack your hat and we'll see you down the road.