Ballet Costume Bag Size: Approximately 70cm x 70cm (Folded gusset: Approximately 16cm) Thin and lightweight without lining. The button at the bottom is not for size adjustment. By attaching the drawstring ends to the buttons on both sides, you can use it as a knapsack. Alternatively, you can attach both strings to one button and use it as a single-shoulder bag. The fourth image shows my daughter using a bag of almost the same size. She is 125cm tall and has three costumes inside. There was still room in the bag, so it seems like it can be used even if she needs to put in larger costumes. This is a handmade item by an amateur. I apologize for any imperfections. Instant purchase is welcome. No price reduction. Sorry. Items may be shipped in reused packaging. Thank you. #yukapoko Extra-large drawstring bag Costume bag