Man I got this coat last week and have been out to the mountain three times. It ROCKS. The first time was time out it was 7pm and 15 degrees out and all i had on under the coat was a light under-armor and a t-shirt and i was almost sweating. I went again today after a blizzard just hit and same deal, nice and toasty. I love this coat best, purchase I could have made. There's tons of pockets and the hidden pass pocket on the sleeve is awesome for keeping my season pass in. Just for info, im 59 170 and got a medium and it fits perfectly not huge and not tight fits just right.