Dangerwrote a review of Gore Bike Wear Oxygen GWS Jacket - Men's on January 13, 2018
Familiarity: I've used it several times
Fit: Runs large
Then windproofness on this jacket is great. Definitely runs warmer the my Castelli Gabba 2. I am 5'11" and 172lbs. and found the size large to be a little baggy in the chest and waist. I think the length of the torso and arms would be too short if I had a medium. I found this jacket to be ideal for 35-45 degree (Fahrenheit) days. My biggest complaint is the vent zippers. They are just too difficult to open and close while riding. This is due to their location and the gauge of zipper used.