First how do you pronounce Gilet and Gilets.
Secondly - I do like the look of them but I can't think when I would wear one. If it is cold enough for something quilted or puffy surely you'd want sleeves. I'm doubly confused about gilets with hoods - surely it really would be too cold for your arms if your head needed to be covered.
Is it that only your torse needs to be warm or is it just a fashion thing that doesn't take into account personal comfort?