When the weather is cold and windy but not so cold that you need an insulated jacket. This works well over long sleeve jersey to keep the wind from penetrating to your core. The vents are large and keep the sweat under control. Then when it warms up (or there's a tailwind) it packs up very tight (smaller than most vests). It also fits very close to the body as advertised and there is NO flapping of the sleeves or back in the wind.
Fit wells, I am have a athletic swimmer build at 195 lbs, 6'3" 44 chest. I ordered the XL, fits like a glove or a sausage sleeve, ha ha. I prefer the racing fit of cycling clothing.
I pop in it on after big climbs knowing the descent will be chilly. Also good with late afternoon fall/winter rides and the sun sets and temp drops quickly. It cuts the wind and chill to make it home.
Packs up in a small cinchable pocket to fit nicely in you jersey rear pocket. I get a lot of complements on the color, fit and style.
I was originally looking for a replacement jacket for an older medium weight nylon one I have, but when I got this one I decided it was a good replacement for my light weight jacket. It's definitely a race fit size, but has a slight amount of stretch. I am 6'1" with a 38 inch chest and the large fit me pretty snuggly. Since it has more of a form fit, it does not vibrate in the wind nearly as much as my old jacket, and that's one of the best things I like about it. It also folds very tightly into a small Ziploc baggie that fits well in my back pocket. Finally, it does look good with a somewhat shiny gray appearance, so that helps me ride a little bit faster.
Super clean, lightweight shell cut for cycling.
Enjoy the stretch panels, silver color and simplicity in design. However, a minimal zippered pocket would be welcomed. Then again that would add weight,bulk. Bit pricey.