School Book Bags
May 14th, 2006The most familiar type of school book bag is the backpack. It’s a good design for carrying heavy loads as it distributes weight evenly over the student’s back; however, you should ensure that it has a hip belt. Hip belts help to take some of the strain away from the shoulders and centre some of it around the waist instead, which is far better for the back.
Full article at How to prevent student back problems