The Gray Boys Mutants are failed experiments from the Gray Boys Science Lab...

Want a mutant?

Head over to https://opensea.io/collection/grayboys and get a Gray Boy.

Then, head over to https://opensea.io/collection/grayboys-science-lab and get some red and green serums to mutate your Gray Boys.

Now, head over to the science lab and perform you mutation experiment! https://lab.grayboysnft.com/