This is a great idea! It’s a backpack just the right size to fit a few bits and pieces without gettig too heavy for your toddlers back. It comes with a harness strap which is easily detached to help if you have a ‘runner’ when you are out and about. Bag Diameter 25 cms.
Bright Bots Backpack with Harness Strap Bear BAG2
Blue bear backpack with harness strap