Backpacks may be used to transport a few books, or a two-week supply of camping equipment. Determine what you will most likely be carrying in your backpack to select the appropriate bag. Backpacks are measured in cubic inches (small bags are 1,000 to 2,000 ci, medium bags are 2,000 to 4,000 ci and large bags are 4,000 ci and more). Manufacturers also list how many pounds the bags will accommodate.
It is best to try on the backpack to ensure a proper fit. The trickiest part of the pack is adjusting the shoulder straps. Salespeople can help you try on different bags to find one that fits you best. You can always ask the salesperson to fill your bag with some weight to experience what the bag would feel like full.
There are several different materials used to make backpacks. Some of the materials and zippers are water-resistant or waterproof. Assess how you will be using your backpack to determine the level of durability required for your bag. Some manufacturers offer warranties on the bags.
Some backpacks feature built-in organizer pockets, water bottle pockets, removable hip belts, key clips and bungee cords in front of the bag to hold extra items. The more extras you want in your backpack will affect the price of the bag.
