The On Cap features a breathable mesh lining and a modern hook-and-loop adjuster in the back to provide a perfect fit for your urban adventures, weekend hikes or morning dog walks. This contemporary premium interpretation of the classic 6 panel cap is ready for anything. Fit & Design: The timeless 6 panel silhouette gives the On Cap a classic look with leveled-up comfort A rubberized hook-and-loop adjuster creates a personalized fit in seconds On the inside of the cap, a breathable mesh liner keeps you cool throughout your day