Here you go, we are officially giving you the very best mask for the ultimate Halloween 2017 costume – the White Walker Halloween Mask. The Knight King from Game of Thrones is one of the wildest characters from GoT with mysteries and fan theories galore. This silicone mask from CFX is crazy realistic and made to order. This is no pop-up Halloween shop special. This is a legit second skin mask that moves with you and looks real as hell. It does cost $670 and doesn’t include the blue contact lenses, but if you’re going all the way, go all the way, right?