This jersey is *warm, *very comfortable, *breathable (I can't cope with membrane jackets above about 40-45 F - I sweat too much), *available in bright colors (not death-defying camouflage or black), *long-wearing. It's my go-to winter jersey, and getting one around half-off is always a treat.
Just be aware Pearl Izumi sizes run much larger than euro-company sizes.
These would not stand a very cold winter but they are good enough for the pacific north west.
I also don't think they are waterproof enough but can keep you dry on a lighter rain.
Size is true to the number. I would not worry about going higher or lower than what you wear
This jacket fits perfectly. I wear a size medium at 6'2" 170lbs. It looks great and feels great, too. More often than anything else I wear this for walks when the temps are 40s-50s. I can also see wearing it for chilly bike commutes. It shields me well from wind and drizzly conditions and I can combine it with layers for extra warmth, if necessary. The zipper may me overly delicate for active-wear, but I haven't had any issue with it so far.
I use arm sleeves instead of slathering on sun screen. It's faster than applying sun screen, and there's no clean-up afterwards. I've owned sleeves from many different manufacturers, and these have been my favorite. They're longer which allows you to pull them all the way up to your arm pits, and still have plenty to cover your wrists. The ribbed material may actually help them cool better, and they're a little thicker which likely means better protection from the sun. I'm only sorry I didn't buy a 2nd pair.
