I just bought a pair of the Hells Canyon fleece. The good thing I like about the Hells Canyon is the built in windproof lining. I also really like the neoprene cuffs that can be tightened down. The pants have the high rise back to prevent wind from blowing down your back. All of these little things helped me pick the Hells Canyon. I was not comparing it to the Scent Blocker tho. Other than that I will let you know how warm they are when it gets colder here.