I'm a dumbass lol I'm 90% sure this is just an edit. (I stared at it for ages beforehand trying to work it out but the artist has a lot of similar-looking ones with other screenshot edits sooo.)
This is a common mistake, bit this isn't finnish clothes, it's sami clothes. Now, ofcourse sami are indigenous to finland, so it could be defined as finnish clothes, but they're indigenous to Sweden, norway and russia too, so it would just not be very functional to have as well.
