When it comes to early-season deer hunts in the frigid Minnesota winter, only the warmest of the warm will do. Thorogood® Endeavor Extreme Boots deliver the goods with 2,440-gram ThinsulateTM Platinum Insulation. Thinsulate Platinum Insulation goes beyond standard Thinsulate, offering even better warmth-to-weight ratio—and it's effective even when wet. This is the highest insulation value of any boot we offer, and it's the best insulation on the market. If you want the warmest, you've found the warmest.