“Thin, but surprisingly warm!”

“I commute by bicycle 15 miles each day...in Minnesota, including winter. Some morinings are VERY cold (-5*F), and some afternoons in the same week can be in the 4o*F's. It has been a challenge to find clothing that is warm, wicking, and breathable and works well all temps, all winter. These silk shirts are the part of the answer for me. This base layer is the best I have found. Too thin to wear without something over, though. Men probably wouldnt care, but women may find them too revealing.”