Brand: REI Co-op. Style: Mens short sleeve button-up outdoor hiking and travel shirt with vented back and dual chest pockets. Size on tag: XLarge (Mens XL regular fit). Color: Solid medium blue exterior with tonal stitching. Material: Main body 100% nylon with 100% polyester trim as listed on the interior content label. Tag details: Neck label shows the REI Co-op logo with text "A Wilderness Spirit Born in 1938" and size XLarge; inner care label notes MENS, bluesign PRODUCT, main body 100% nylon, trim 100% polyester, and Made in Vietnam. Design details: Point collar, full button front placket, and a curved shirttail hem for ease of movement and layering. Features: Two front chest pockets with button-flap closures and a small woven REI Co-op logo tab, mesh-lined upper back yoke with vented cape back for airflow, and lightweight woven fabric suited for outdoor use. Fit and occasion: Regular fit warm-weather shirt designed for comfort during hiking, camping, travel, and casual everyday wear in spring and summer seasons. Country of origin: Made in Vietnam as indicated on the interior labels. Condition: Pre-owned short sleeve shirt with very light overall wear and mild wrinkling from storage. Fabric, buttons, collar, pockets, and seams are clean and intact with no stains, holes, or fraying.