The Armour Archive

I’ve found a few depictions of 10th century Rus/Slav men wearing all white. Is there any evidence of this? Or did a modern artist have an idea and then others copied the idea?

If there is historic precedence for it… Is there any significance to it? My wife suggested it might be religious or ceremonial clothing.

Thor Ewing talks about many references to undyed or white cloth based on literary references.