Size is a bit large, but it works.

I bought this suit because my son was always getting cold waiting for his turn during diving lessons. It fits great and keeps him warm. He loves it!

looks really nice, but my kid can't wear it, it's too tight, especially around the neck.

This is our second suit. My son wore out the first one. I bought the suit after he didn't want to swim outside in the early morning swim lessons. He is so tiny that he would shake while swimming,  not anymore... It also does not help with bouncy, a concern his swim teacher had. He swims and floats equally as well with and with out the suit . The only wish I have is for a front zipper. It is very hard for a 4 year old to unzip the suit. The price is wonderful and the basic colors of blue and black are much better then having the patterns of some of the other brands.

It's baggy on my son, but he is a skinny guy.  Good in length

This wet suit is great for staying warm in the ocean.  
It is great sun protection.
I would prefer a version with long sleeves.