Patagonia® Men's R1® Air Crew 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 with hollow-core yarns features a unique zigzag texture that wicks moisture, dries fast and is highly breathable for high-output activities; with HeiQ® Fresh durable odor control Off-shoulder seams sit comfortably under pack straps Left-chest pocket for easy stashing of small items; minimal bulk makes for a great layering piece Quick-drying woven binding at the back hem and cuffs for added stretch and improved fit Slim Fit Fair Trade Certified™ sewn, which means the people who made it earned a premium for their labor Certified as bluesign® approved fabric Made in Sri Lanka Product Features: Fabric:5.7 oz. 100% Recycled Polyester Jacquard Fleece with hollow-core yarns and HeiQ® Fresh durable odor control Weight:9.7 oz. (275 g) Patagonia Men's R1 Air Crew Long-Sleeve Shirt