Rasta ImpostaHammerhead Shark

Can I wash it or not? Amazon description says you can handwash it but the tag says I shouldn't wash it.

can unzip any part of the hands? I want to wear it to work but I'd need my hands free and out of the fin

Are there different sizes of this costume, and if so how do I select one? If not, what size does "standard" fit according to your sizing chart?

Would this fit someone who is 5 feet tall? About where would the "bottom" of the costume be?