This is a side pocket for a school backpack purchased from Devilock. I used it to hold a water bottle, but my child didn't like it, so I'm selling it. ・For storing recorders and folding umbrellas. ・Rubber pocket that can also hold a water bottle ・Reflector included, useful on dark roads ※Depending on the size of the water bottle, it may not fit in the pocket. ※Please check in advance if it can be attached to your school backpack. ■Condition: Used twice. It's clean with no stains. ■Color: Violet ■Material: 100% Polyester ■Hand washable