Your body can transport extremely heavy loads – if carried properly. Most of the weight should be carried by large muscle groups, such as the back, stomach and legs. This is why large trekking backpacks come with a padded hip belt. The size and intended use of the backpack should determine which model is right for you.
When searching for a backpack that can handle a multi-day trek with a full pack, you naturally need to demand more than you would from a backpack that you would use for a day trip. Here is a quick check list to follow:
• Ergonomic support system that redistributes the weight
• Good fit and size for your height and body type
• Good storage space – in terms of volume, access to contents and number of pockets
• Strong fabrics, seams, straps, etc., that can handle a heavy load and are water resistant