Backpack Bottle Sleeve

thingiverse

My five-year-old was having trouble getting his refillable water bottle into its designated spot in his backpack sleeve. The rubberized sleeve on the bottle made it stubborn and difficult to slide into place smoothly. That's when I realized that I could create a custom fit by inserting a flexible insert, like this hexagonal shape, into the pocket of his L.L.Bean backpack sleeve, allowing him to easily slip the water bottle in and out with minimal effort!