The jacket is comfortable and very adjustable with lots of straps around the arms and body so you can tighten or loosen the fit. I have worn it in very hot weather with the vents open and also in very wet conditions. it held up well in both keeping me cool in the heat and dry in the rain. Haven't used it on a very cold day yet so cant comment on its winter usage. One thing that may be an issue is fitting this with gloves. My Full gauntlet would not fit over the jacket sleeve but other gloves I own would fit over and under the jacket. Be weary that tight fitting wrist full gauntlets did not though in my case. Overall very happy with it