You’d think a “Black belt” would know how to tie a belt. The man in the background has a properly tied square knot. Putin has the kind of knot I yell at my 10 year old for tying.
Putin does not care for such details. He doesn't wear correct attire when he rides horses either. He doesn't have to. He is an autocrat: he does what he pleases and anyone who criticizes does so at great risk.