The Planar Lightweight Cap is built for high-output activity, combining a breathable main body fabric with mesh panels at the sides to keep airflow moving. The rigid peak holds its form under demanding conditions, while a Hypalon mount at the rear positions the cord lock away from the head for a cleaner, more comfortable fit. Weighing just 35 grams, it packs down small and adds minimal load whether you're on trail, in the mountains, or moving fast in warm conditions.