From sunrise approaches to hiking in the full sun, this cap is made for all your mountain activities. The stretchy softshell fabric is breathable, lightweight, and finished with a durable water repellent so you stay covered on sunny days (and unexpected weather). Fit & Design: Adjustable buckle closure for a secure fit Spacer mesh sweatbandBreathable Breathable Lightweight Stretch fabric Arc'teryx bird logo centre Technology: Water repellent Aequora AirPerm(TM) fabric is lightweight and comfortable next to skin in warm weather FC0 DWR (Durable Water Repellent) finish repels moisture and is PFAS-free Additional Details: Do Not Bleach, Do Not Dry Clean, Do Not Iron, Surface Clean Only, Do Not Tumble Dry, Do Not Wash Recycled nylon/spandex stretch plain weave FC0 DWR, 138 gsm Contains materials that meet the bluesign(R) criteria; Biocidal Disclosure - This model was treated with an anti-odour biocidal product (Active Ingredient: Silver Nitrate); PFAS (Per- and polyfluoroalkyl substances) Compliant