A grab-and-go cap for a casual day at the crag, this Arc'teryx hat is lightweight yet durable. The tough nylon outer resists wear and tear. A Spacermesh sweatband takes care of perspiration. Design: Spacermesh(TM) sweatband promotes breathability, absorbs perspiration and dries quickly in warm weather Button-free top ensures a clean look and seamless fit under a climbing helmet Lightweight, rounded brim stays low-profile and out of your way as you move Snapback adjustment strap Water-repellent Embroidered logo spans the darted front panel, balancing minimalist structure with a laid-back aesthetic Relaxed fit inspired by the Arc'teryx Bird Head toque Contains materials that meet the bluesign(R) criteria Primary fabric is bluesign(R)-approved material PFAS (per- and polyfluoroalkyl substances) compliant Additional Details S/M: 21.75-22.5 inches L/XL: 22.75-23.5 inches