Only 20 pairs made and 5 pairs per Supreme store: Supreme New York, Supreme Los Angeles, Supreme London, and Supreme Tokyo Harajuku. (Possibly sample sizes [9-10.5] since the box label number is different and it has sample print behind the tongue.)
Also, each pair is numbered and signed by Steven Caballero himself. (Check the video)
The pair that I got is the one you see on the video (below).
#3 of 20.