"The Merino 260 Quantum Zip Hooded Jacket uses 100% merino wool at a 260 warmth rating to regulate temperature and resist odor through repeated wear, without a synthetic fill or membrane doing the work. Backpack-compatible zippered hand pockets and a hidden chest pocket keep essentials secure on the move, while thumb loops seal out cold air at the wrists during hikes, ski days, or long stretches outdoors. A slim fit and dipped hem give it enough coverage to work as a stand-alone layer or under a shell. What Our Gearhead® Experts Are Saying:""I wore this on back-to-back ski tours without a wash between them, and it never picked up a smell. The zippered hand pockets kept my phone secure even scrambling over rocks on the approach."""