At Tapp Airsoft HPA is a big part of our company. So we developed the TappPack, to suit all your HPA needs. Every backpack is Handmade in the USA to ensure the best quality. The TappPack has a padded back, line guides, bright colors, and many other great features. The TappPack is the perfect HPA backpack for any Airsofter who runs HPA looking to add some comfort and flair to their kit.