The waist is fully elastic and has a drawstring for easy size adjustment ☺︎ It has double pockets, making the back look neat. It's a men's S size, so it's also very cute for women to wear! My child wore it a few times and outgrew it, so I'm selling it. The name written on it in the third photo will be erased before shipping. Thank you for your understanding and purchase. Thank you for looking.