Pearl iZumi Fly Jacket

The age-old runner’s conundrum: a jacket that prevents you from getting wet, but fails to wick sweat properly. If not, then chances are you're rocking a jacket that is far from waterproof and breathes like fishnets. Either way -- clammy from sweat or sopping wet from rain – a jacket becomes a burden rather than a blessing. Pearl Izumi rides the thin line between external protection and internal breathability with the Fly Jacket. The jacket is fashioned from Pearl Izumi’s proprietary Barrier fabric, which is water and wind-resistant as well as highly breathable. The Fly jacket does away with vent zippers in the armpits, opting instead for open armpits for continuous airflow. We loved not having to open up the vents. You will too if you prefer venting hot, sweaty air out of your jacket instead of letting it fester and ferment. “I usually won’t wear a jacket on the run,” said one tester. “But this was perfect for cold and rainy runs. I went 8 miles before I noticed any internal moisture.” There’s more to this piece than keeping you cool, though. The Barrier repelled everything but heavy rain, and wind felt nearly nonexistent throughout months of winter trail runs. Testers saw the internal mitts as a nice detail, “It’s a great touch if you leave your gloves at home.”  Runners can tuck their hands inside a pocket within the cuff of each sleeve, shielding their hands from the elements. Bonus: There’s a zip pocket in the back if you don’t need your gloves or just need a place to stash a few small items.