1. No heavier than 5-10% of their body weight.
2. Backpacks shouldn't hang more than 4 inches below your waistline.
3. Small! It gets filled up no matter what size it is.
4. Look for wide, padded, and adjustable straps.
5. Wear the backpack over BOTH shoulders!
6. Keep your back healthy with adjustments from your chiropractor!