Quote Originally Posted by KSH
Layers. Got it.

Now... what is a "R.5" or a "R1"? Not sure what that means.

Honestly, I doubt I will venture out on the bike once it gets cold. I hate the cold.
They are in Patagonia's regulator family of products. R.5 is the lightest weight, R1 a little heavier, then there are R2, R3, and R4. If you look on the Patagonia web site, the R.5 is listed under performance underwear, and the others are under jackets or vests.