These packs are great for overnights, weekends or longer trips in the backcountry. Most of our packs are adjustable so they can grow as your kids grow. Most manufacturers of packs suggest that your child only carry up to 1/4 of his or her body weight to make sure they are comfortable. A pack with an adjustable harness and hip belt can be changed in many ways. Call us at 1-888-377-8203 with any questions on pack fitting.