I bought this after reading reviews and I wanted the least amount of clothes on during my Motorcycle runs. I was happy that I wouldn't have to worry about how it was dried. I live in Northern CA. and it's been colder than usual, but I like to ride year round. I put everything on and left around 10:30 am on my Bike and headed up towards Jamestown to do a little gambling at one of the casinos. The higher I went up, the more I wished I had my cotton Thermals. I had the top,a light shirt and my Leather Jacket. I didn't want to ride down in the dark, but about 30 miles away from the house I lost any warmth from the sun. The last 30 miles were away from the Hills, but I found myself yearning for my cotton thermals, instead of what I had on. If you ride and it gets down into the forties, you can wear these and anything else you can get on, because I think they would be fine when it's in the sixties and that's just a guess. I'm too Old to allow the cold to get the better of me. I'm 61 and have been riding for awhile. I hope this helps some old person avoid my experience with the cold.