The primary reason we don’t give ratings for our jacket is that it's too subjective. Not only is everybody different, but conditions at any given temperature are also different as well. Factors such as humidity, wind, sun, clouds and activity level all affect how cold a given temperature feels. Some people just don’t handle cold as well as others so the first variable is whether you run cold or hot. The Jacket is water resistant and will remain warm when wet.
The LoftTek Jacket has been tested to keep a male warm down to 20°F. Anything below that, we recommend layering up.