I bought these jackets for my boyfriend and I based on a friend’s suggestion- I am SO glad I did. We are big on the outdoors, but not big on the cold! We are skiers, and that was one of the driving forces behind my purchase. Well, I decided to put it to the test. I committed to a full day of skiing (8 hours day to night) in this jacket, verses a large winter jacket. I couldn’t believe that I found myself turning the heat DOWN even skiing in 20 something degrees! I hardly ever had it on high. I wore a vest over it and layers underneath and was totally warm and comfortable. We both have been wearing the jacket everyday- even just to be cozy indoors! I HIGHLY recommend for anyone who loves the outdoors and debating your purchase!