The Arc'teryx Bird Word Cap is a lightweight six-panel hat built for hikes, ascents, and warm-weather movement when breathable comfort matters. Made with Circuit stretch polyester, it offers a light, comfortable feel with quick-drying performance and air-permeable construction to help manage heat on the move. A spacer mesh sweatband adds soft moisture management, and the adjustable buckle closure helps dial in a secure fit. Finished with FC0 DWR treatment, this cap is ready for sun, light moisture, and active daily wear.