This is a nice top. I bought the size large and it seems true to size. The material is nice wool, not too think or heavy. I bought another one in person at a brick and mortar previous to this one, so I knew what I was getting. My husband has the thick Minus 33 pants, and this is not quite that hardy. I live in the western UP of Michigan where it is very cold, and this is one of my ice fishing layers.  I can highly recommend the quality of Minus 33.