I bought this for my 6 1/2 year old son.  He is a little big for his size but not huge.  I bought him the size 8/10 and it fit great.  A bigger kid could have worn it.  It was very cute.  It was hard to find a lion costume in kid size and not infant/toddler size.  It is the quality I would expect from a costume at this price point. - maybe even a little better quality.