An Arnam can be hard to recognize in summer due to their colorful outfits, especially at night when their skin blends into the darkness. But in wintertime on most human worlds, they are usually much easier to see. Their bodies are designed to swim down into the coldest, deepest parts of lakes or oceans without needing extra insulation, and surface temperatures below zero don’t bother them at all. They will wear the same frilly dress or light business suit in the depths of a dark winter night in the middle of a blizzard as they will on a sunny summer day. They don’t need insulated coats or gloves. And their brightly-colored clothes stand out when everything around them is some shade of white snow.