The Patagonia bucket hat is made of durable 4-ply SUPPLEX™ recycled nylon that has a DWR (durable water repellent) finish providing 50+ UPF sun protection. It has a reversible design with a generous brim to shield the head, face and neck, and a tuck-away chin strap with hook-and-loop fastener. Chin straps to tuck away when not needed. Packs small; easy care.