This is a size M (18-24 months). It was worn indoors for about an hour for a Halloween photoshoot. My child, who was about 1.5 years old, found it a little big, but it was wearable without any problems! The fabric is sturdy and doesn't look cheap, which was good. The tail that wags when they walk is cute. The product includes a head covering, a bodysuit, and wolf feet. The long-sleeved T-shirt and tights worn underneath are not included. The original set consists of those three items. I purchased it from a website overseas. It's in good condition, but since it was worn once by a child, please understand this before purchasing. I will be away from 12/29 to 1/3, so I will not be able to ship during that time. Thank you for your understanding.