So I have only had this jacket for a month, but I have already used it in every possible condition on the mountain from warm sunshine, to sleeting rain, to full blown blizzards with 60mph winds. It does well in all conditions. It is also warm enough with it additional lining to just wear a t-shirt underneath in most conditions. However, when it gets warm out, then you simply remove the lining and open all four of the air vents. I've skiied for 25 years and this is the best jacket I have ever had.