I always buy a size or size and a half larger for my kids winter boots for room to grow and extra socks, so I can't a test to how true to size they are.

My lazy son loves the slip on styling and comfort, I loved the price. We haven't had all the much snow this winter, so I don't know if they'd hold up to repeated play time outside, but we haven't had any leaks or problems with them.

I do plan on buying them again next year, just because they alleviate extra hassle before school time.