My son is finally ready for school at 18 months! Where can I buy a backpack for a toddler and any recommendations on brands you liked?

JJ Cole bag for kids are awesome. Light in weight, comes with a frront pocket and easy to dry. Dry fit kind of material. Its about $40 i think. You can get it from Mothercare. I got mine from Mothercare in specials. Go check it out :)