@freemo I want to say black because it absorbs light but polar bears are white and they seem like they know what they're doing.
@valleyforge Polar bears are actually way more complex than it appears. Their skin is black and their fur is white. Their fur acts like little fiber optic cables that channel light from the outside down to their skin where they warm up. It is actually quite brilliant design on the part of god/evolution/zeus.
facetious answer
White clothes are better camouflage in a snowy environment. Getting killed by a polar bear would cause your body temperature to drop to ambient; thus white clothes are an advantage for staying warm.
facetious answer
@khird @valleyforge