Not sure if we are having an unusual experience, but the very first time my 4-year-old daughter put these on, one of the seams in the crotch ripped. They fit her just fine overall so it's not an issue of them being too small on her. The material seems durable otherwise, and the rip probably won't interfere with her being able to wear them for her recital so I probably won't bother returning but just be careful when you pull them up...