it 's one of the highest - earning vending machine 's wardrobe .
the uniqlo - branded vending machine earns $ 10,000 a month on average , according to doug yakel , a public information officer for san francisco international airport .
hbo ; uniqlo ; melia robinson business insider san francisco 's airport has a vending machine that dispenses vests — the unofficial uniform for venture capital investors — and twitter has been poking fun all week .
the vest has become the unofficial uniform for silicon valley investors .
 
no one seems to know how the fashion faux pas turned into a staple , and yet , the fleece vest is inescapable in silicon valley .
japanese retailer uniqlo started selling clothes out of vending machines in airports and malls across the us last year .
john p. johnson hbo i ' m sitting in a san francisco , counter - service restaurant waiting for my chopped salad , when a group of tall , white men wearing button - downs and fleece vests crowds around the cash register .