Not for children under 6 years.
Fits perfect. My son loves it
I purchased this for my average sized 7 year old and the gown fit fine and was, in fact, too long (you can hike it up with the help of the belt) but the hood is ridiculously small. We could barely get it over his head and it is really tight, almost strangling and doesn't drape at all, as the photo implies. I think this might fit a 5 year old head. I might cut the neck for comfort, but I would not recommend it b/c the look is not what is shown in the photo. FYI It doesn't come with the gloves.
I bought this "One Size Fits Most" costume for my 10 year old son. It was too snug in the hood and shoulders. I would recommend this costume only for smaller children between 6 and 8.
Was great for Halloween. My son actually dressed as the grim reaper using this robe, and it worked out great. Robe held up well.