The urban internet legend is coming for us. We've seen the drawings and they're getting more and more sinister. He's coming. Slenderman took over as the head Internet monster a few years ago and he's not showing signs of being topped. The Slenderman is still at large and we think that Slenderman costumes are some of the best, especially our Slenderman Morphsuit. Our Slenderman Morphsuit is a brilliantly easy costume, comfortable to wear and creepy as hell, a perfect Halloween costume, or just randomly creeping out people on a walk in the forest. See below for our whole range of Slenderman costumes.