"Kit" is what you call coordinated cycling gear. A vest is a million different things, including what Brits called singlets in the 70s, but they also have wrong words for a bunch of other things.
I call em 'Joofy Poofers’ but I live in my own reality with my own rules so it’s entirely okay and respectable if you disagree with that.
”I really want an NOP Joofy Poofer but there’s no way in hell I’d pay 650$ for a normally 45$ black Nike Poofer just cause it’s got a cool skull on it”