You know how some cyclists ride their age around their birthdays? E.g I rode 69 miles a few days after my 69th BD ( actually, I rode 72, but don't sweat the details). Well, I decided to try something new ... riding the temp (in F) For each of the last three days I rode the tempreature ( in F) ... 28, 29, and 34 miles. The wind was 15, 25, and 10 mph each day. It's great out there in the corn and bean fields with a light dusting of snow on everything. My riding outfit includes hiking shoes (platform pedals now), smart wool socks, leg warmers, regular riding shorts, an underarmour shirt, a running jersey, a light fleece, a windbreaker, and good gloves. I wear full cover sunglasses to protect from the wind and have an ear band under my helmet. The outfit is good for 3 to 4 hours riding down to 20F to 25F, then I need to warm up for a few minutes ... except when the wind is over 20 mph, the wind chill starts to get to me. It helps if I keep my speed down to about 10-12 mph to decrease the effect of wind chill. I also spin a little faster to stay warm. I just pray that I don't get a flat out there in the cold.