Spider-Man Pool Bag, 2-Layer, a Drawstring Backpack, Boys' Backpack Size: Approximately 25cm wide, 40cm long (including 8cm at the bottom) 19cm depth It has a 2-layer design, allowing you to separate dirty or wet items. It's a backpack type, so you can carry it on your back. Besides a pool bag, it can also be used as a gym bag, a gym clothes bag, a club activities bag, etc. It's useful for putting in shoes, small items, and various other things.