MENS Chest "cm" (Small 83-88) (Medium 89-94) (Large 95-100) (XL 101-106) (XXL 107-112)
I use this shirt from Nov to Mar in the Charlotte, NC area. It really does a great job keeping me warm during my winter bike rides, average temps around 40-50 degrees. Over this shirt I wear a fleece and jacket, and I'm always warm even through the sweating process. I own 4 of of these t shirts.