THEY TAKE CARE OF THE COLD SO YOU CAN STAY FOCUSED ON EVERYTHING ELSE. The Cozy Dell Merino Bottoms start with the same foundation as everything in the Merino collection - Engineered Merino, superfine wool wrapped with recycled polyester filament fiber rather than simply blended in. That construction is what lets these take the wear a pair of baselayer bottoms actually see - repeated flexing at the knee and hip, layering under gear, day after day on rotation - without breaking down the way standard Merino would. Moisture moves before it becomes a problem, heat regulates on its own, and odor stays in check so you&';re not digging for a clean pair every day. Durable where it counts, soft enough to forget you&';re wearing them. We&';ve had two decades to get this right. ForgeLine has been building high-performance wool next-to-skin baselayers for U.S. Special Operations Forces since day one - long enough to know exactly where standard Merino fails and exactly what it takes to make it better. Engineered Merino is what that experience looks like today. Style Number: 2303001