The Patagonia Men's R1 Air Zip Neck Shirt is a lightweight, breathable and quick-drying technical fleece for high-exertion activities in cold conditions. The 100% recycled polyester fabric is structured for comfort during movement.

• 100% recycled polyester jacquard fleece allows airflow and optimal moisture control
• Off-shoulder seams sit comfortably under pack straps
• Left-chest pocket for easy stashing of small items
• Light and compressible with minimal bulk for easy layering
• Quick-drying woven binding at the back hem and cuffs for added stretch and improved fit
• Half-zip for added venting
• Fair Trade Certified sewn means the people who made it earned a premium for their labor
• Manufacturer limited lifetime warranty against defects in materials and workmanship