The Patagonia Lambswool 1/4 Zip Sweater for Men features an exceptionally soft blend of 9-gauge 80% lambswool and 20% nylon to moderate your temperature, resist odors, and maintain its shape when you wear it on the road day after day. The quarter-front zip lets you vent or trap air depending upon prevailing conditions. Offset shoulder seams stay smooth under shoulder straps or a loaded courier bag. Recyclable through the Common Threads Recycling Program.