Not very warm, but comfortable and odorless
Verified Buyer Reviewed by Adam from Wisconsin on Monday, March 2, 2015
Obviously not very warm, because they're lightweight, but they are even less warm than I expected. The best time to wear them for general use is when it's in the upper 20s, at which point I usually just go without a baselayer. However, these are pretty handy as a baselayer under shell pants for spring skiing. I've worn them 4-5 days in a row (over boxers) with little to no odor.