A vest (or singlet) is THIS
If it has SLEEVES it's a T-shirt
If it has POPPERS at the crotch it's a fucking babygro. Or a onesie, if you must. NOT a fucking VEST.
I am so pissed off that the penny has only just dropped now. You've been confusing me for years on this. Particularly as adults wear vests and in that context it doesn't have bloody poppers at the crotch now, does it!?