This sleep sack has been through one toddler, for one season. The tag has been faded by washes but is in great condition. There is a double zipper, which we used to unzip his feet out when our son got older. This is a Large and per manufacturer is for 28-42 lbs and 33-40 inches. It is soft and stretches. There is minor pilling. This was our favorite sleep sack brand.