Just returned from 35 minutes of brisk walking with the dog. Temp is +7 F, wind chill is -10. This coat is rated at 5F to -40. No way. After just 1/2 hour, really cold-especially across the shoulders and back. I had the hood up and fastened and all snaps, etc. closed. I was wearing a turtleneck and medium wt. sweater underneath. Great coat-but not to -40 as advertised.