I live in central Texas and keep these for staying warm during power grid outages. My daughter wore this indoors for a few hours. She was already walking so it doesn’t even have crawling wear. In fact I cannot find any signs of wear. It is marked size 12 months, although I find all snow gear to run a little large. I find this suit to be consistent with other Columbia and Patagonia 12 month outerwear. I LOVE the woodland print on this one!