Backpacks from school to backpacking trails

From early grade school through the rest of our lives backpacks have been helping people carry their things. Book bags, mail carrier bags, laptop bags, Rucksacks and multiday packs are all different styles of backpacks that range in size and carrying capacity. For recreational uses backpacks are used for day and multiday trips and have larger volumes and added features for carrying supplies. The backpacks list consists of sites related to backpacking trips, retailers and manufactures. If you know of any sites pertaining to backpacks or containing information that would be beneficial please add those sites to the list at the bottom left.