Isn't it actually "fluffer"? Either way...
Um, "puffers", as you call them, or "puffys/puffies" as they are called by non-morons, are great to wear while skiing in places where it's freezing fucking cold. If you live somewhere where you get tons of precipitation and warmer temps, probably not such a good idea, unless you get the XXXL and NEVER zip it up, in which case I can refer to you as "one of those guys from Surrey". You don't want that, k?
Basically, you're a moron. And I don't like you. So fuck off.