Have to pinch myself on the price but I ride in the North East where a 20F swing in a winter day happens, a lot. I have other Assos kits; I expect and get $uperlative. So I read these reviews and went out with 2 thin baslayers, winter cycling boots, neck gaitor, ok gloves and head/ear band. The day was scheduled to start @ 44F and swing to low 30s. This is a strange jacket as you can tell from others reviews who say I was chilly but not cold. The temp regulation keeps you in a chilled state (I prefer that to over heated) no matter what the temp is. Solid at 44F but as the temp dropped trouble started. Anyway, by the end of the 3 hour ride I was hypethermic. Sore joints, headache, slowed brain functioning ( more than normal?) & flu symptoms. I know this state as I ice climbed for 20 years. A couple of possible reason: clearly baselayer was insufficient, no helmet cover(this can make or break you in these conditions) warmer tights? and the last 1/2 of the ride there was light freezing rain. 32F in a wet/humid overcast condition is a whole different game than 33 and sunny.
Overall impression: clearly I need to take another ride but this jacket needs careful layering. I’d opt for thicker but you have to deal with the Centro fit (I went up a size) 6’-0”, 168lbs. Small shoulders big chest - size 40 jacket. Settled on an XLRG. For The reviewer who says he doesn’t wear it unless it’s 30F or lower - I want what he’s taking. I don’t think this is a sub 32F jacket unless you are pumping your BPM/watts, hill climbing, intervals etc or layered. I’m sorry but right now the Castillo Aliph Ross is 1/2 the price and will keep you WARM to 30-35F and temp controls are huge. This may change with more use.
About 1/2 through winter so I will come back with more ride time, conditions and thoughts.
Ok, rode in every winter condition. I’m sorry but this jacket is NOT waterproof!! You get caught in a downpour and it’s sub 40f you will be wet & cold. Nothing works in all conditions and I still feel this jacket is meant for 30F and above. Below 40f you need to layer up and you will be cold on those long descents. I did find that the upper chest got cold first, suggest a wind block base layer. I also bring a rain shell if it’s close or below freezing, this solves the long descent issues and if temp drops below 30F keeps things warm on the flats.
The guy below who wears this in 15-25 with medium base layer is the anomaly. I also think his Habu zones are off. 40(cold) - 55F is more like it. I do agree that winter riding is more than temp range but if you are off by 10F with this jacket you will pay a price.
Pro: great for hard ascents, interval and pushing the watts/HR. Light weight for winter jacket. Quality +
Cons: price, size small and needs careful layering = narrow temp range- bring Lt wight shell.