Alpinestars - Sealed BackpackA 100% waterproof backpack with sealed seams for effective wet weather performance, the Sealed Sport Pack has been designed for sport riding, commuting or urban riding and is equipped with one main compartment including a padded laptop sleeve, one external waterproof pocket and a quick release roll top closure for easy access, complete with side straps to keep the pack compact and water tight when closed. This 23 liter pack also features an adjustable