Costco Kappa 3T While it varies from child to child, I believe it was used from around 2 to 4 years old, with the sleeves rolled up. Since we mostly used a car for going to and from the daycare, and didn't go out much in the rain, it was only used a few times for daycare events and outings in the neighborhood, so the usage frequency was low, and I think it's in good condition. There are wrinkles from washing. Since it is a used item, please refrain from purchasing if you are at all concerned. It will be compressed and packaged using recycled packaging materials. Please refrain from purchasing if you are concerned about wrinkles. I try to ship the next day, but since I have a young child, there is a possibility of delay on bad weather days or if the child is unwell, so I have set a longer shipping date. I do not ship on weekends and holidays when I have no plans to go out. If you are in a hurry, please comment before purchasing.