What Our Gearhead® Experts Are Saying: "I like this cap for winter runs and hikes where staying warm without overheating is tricky. The fleece ear flaps make a big difference on cold starts, and I can flip them up once I’m moving. It breathes well, packs down easily, and fits comfortably for high-output days." We reach for the Winter Duckbill Cap when cold air meets high effort. Patagonia took the iconic Duckbill design and tuned it for winter, creating a cap that keeps us warm without trapping heat during fast-paced hikes and runs. It’s built for movement in cold conditions, where comfort depends on the right balance of insulation and breathability. Soft, quick-drying fleece regulates temperature while managing moisture as our pace changes. Flip-down ear flaps add warmth when the temperature drops, then stow away when we heat up. A crushable brim makes it easy to stuff into a pocket, and the adjustable fit keeps it secure through miles of movement. From frosty trailheads to windy ridgelines, this cap is made to keep us moving comfortably all winter long.