Greta Van Fleet HAS to collaborate with Birkenstock. it’s like a match made in heaven. There is no reason to say no. no one can compare. it will finally give my mom a reason to get me some. The total sales will skyrocket because we all know that the peaceful army is very strong and anything that Greta Van Fleet does we will follow ( unless it’s bad ) WE need this. EVERYONE needs this. please sign no matter who you are. it will be greatly appreciated!