QUICK! HELP! Speedy 30 w/pic Y/N??

Nov 19, 2010
263
12
Connecticut
My cousin bought it for my mom but he didn't know there were different sizes. She wants the 25. We're about to return this for it butttttt I just tried it on and I like it. And it's big enough to hold my kids' diaper pouch. Do you think it looks too big on me? Should I keep it?