User Review: Big Agnes Deep Creek 15°
I got this bag from the retail location in Steamboat for the demo price about three years ago when I first came out. I used it on numerous cold weather trips with the standard core pad and I seemed to be a bit cold but now after a few years I can't really even stay warm in it at 30 degrees. I need to wear pants and socks or down booties.
Last year when I got back from a January trip I went into the store on Oak Street in Steamboat and inquired about the lack of warmth. The guy that helped me said that it was a bit light in down to be considered a 15 degree bag and offered me a great deal on an overbag, so it is definitely not a 15 bag.