Permafrost Superarctic is a combination of the recessive sable mutation, the recessive caramel mutation, the recessive evan's hypo mutation and the homozygous incomplete dominant superarctic mutation. This combination has a very light blueish grey colour with subtle pinks and reds shining through. The sable mutation creates a high amount of iridescence. Iridophores are responsible for the reflective qualities and hues.