When the weather gets tough, the tough layer up. Carhartt makes gear that’s rugged enough to brave Colorado lows & record snows, so let the mercury fall; this gear's up to the challenge. Carhartt men’s thermal shirts are the base layers you need to keep your bases covered. We’ve got all the men's thermals you need featuring Carhartt Force®, FastDry® and Rugged Flex® technology to ensure that you’re comfortable, dry and flexible so you can focus on your job no matter what it demands. Carhartt Realtree Xtra® camo thermals are the perfect addition to your Carhartt Realtree Xtra® camo gear. Carhartt thermal shirts and work pants work as hard as you do so you can outwork, outhunt and outlive them all.