The Arc'teryx Aerios 5 Panel Cap is your ultimate companion for sunny spring and summer mountain runs. Designed for performance-driven athletes who refuse to compromise on speed or comfort, this ultralight running hat combines fast-drying technology with thoughtful design details.

Speed isn't everything, but it sure is nice. This five-panel running cap features fast-drying fibres and ultralight construction that won't weigh you down on the trail. The quick-adjust shock cord closure at the back ensures a secure, customizable fit that you can dial in on the move.

• Ultralight 15D nylon double weave construction for durability without bulk
• Fast-drying fibres keep you comfortable during intense efforts
• Air permeable fabric promotes breathability
• Water-repellent finish sheds light moisture
• Quick-adjust shock cord at back for easy, on-the-move fit adjustments
• Internal moisture-management panel at the front
• EVA foam brim shades your face while maintaining shape and minimizing weight
• Treated with Silvadur™ anti-odour biocidal product