The R1® Air Vest is a lightweight, highly breathable and quick-drying technical fleece core-warmer for cool conditions. Perfect for boosting warmth without restricting the shoulders and arms, and built with 100% recycled polyester fabric for comfort on the move. Made in a Fair Trade Certified™ factory. Features: Zigzag-knit pattern increases airflow and minimizes bulk for breathable, compressible performance Breathable full-zip vest with a slim fit is built for a full range of motion Off-shoulder seams sit comfortably under pack straps One zippered left-chest pocket stashes small items; two front pockets with minimal zippers for reduced bulk Quick-drying woven binding at the back hem and armholes for added stretch and improved fit Made in a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor