Peter R.wrote a review of SUGOi RSE Alpha Bike Jacket - Men's on October 17, 2015
Familiarity: I've used it once or twice and have initial impressions
Used the jacket for the first time today. It was a cool/cold morning ride. It started out at 28 F went up to 39 F. I was never cold or to hot during the ride. The jacket works as well as they claim it does. As for sizing I usually buy medium in Sportful and Castelli, this jacket in a medium fits good, but the at the hips it is a little loose, but It didn't let in any cool air when riding. I was wearing this jacket with a Sportful Ultra Light WS jacket and a thin base layer.