I believe these were called Expedition. Size 12. They are large, heavy boots. Best for stand hunting or ice fishing. I believe they have 1000 gr of Thinsolate, along with the wool liners. They also have DryProof waterproofing. I wore them one weekend of stand hunting in temps that didn't get above 15, and never got cold. The older I get, the less likely I am to ever hunt in those temps again....... Will sell the boots for $80TYD