Rasta ImpostaShark

Would like some sizing advice. My 3.5 year old is 38lb and 40" tall. Will he be swimming in the 4-6X?

Is it supposed to have black fabric covering the face hole? You can see my review for a picture of what I mean.

Did anyone else notice that there was only one eye on the costume or did I receive a defective one?

Are you able to get their hands out from the fins without taking it off?