Just pur hased, received and used my new Assos Mille GT Winter bibs. Temp was 15f all I wore over it was a pair of nylon bike pants to break the wind. I never even felt the cold once I warmed up after the first 15 minutes of riding. Rode 20 miles on my fat bike and my problem was sweating thru my heavyweight fleece top and my Darn Tough mountaineering socks. I need to figure out how to keep the base shirt dryer. Probably a better venting thin outer jacket.