Dec 09, 2013 at 04:56 PM
I've found that a good thermal jacket with a functioning zipper and a single base layer of varying sleeve lengths and/or thicknesses works well for keeping me comfortable in almost all cold weather riding conditions. The second I feel like I'm heating up too much, I zip down and let the cold air keep my sweat in check. (Yo son, keep your sweat in check!) There are usually multiple panicked moments where I'm like, "am I cold and dry or cold and wet?" during this dance. A zip up and a few minutes later, if I get warm and toasty, I know that I haven't crossed into the wet-zone-of-death-and-destruction.
I find that the more common "layering" advice doesn't work well for me...because the more layers you layer with the less room you have for over/under dressing. And let's face it, you can't easily stop to take too many layers off beyond an extra wind jacket or vest, etc. So that's why I believe in the "too warm" thermal jacket/zippering technique.