Microfibre, 50+ SPF. This superb design allows you to wear your flaps up or down. Tuck the flap up inside the hat for an ordinary baseball cap, or let it down to protect your neck. Side Panels made of breathable Radicool Protex 50+. Elasticized back allows Microfibre hats have a flap that tucks up, but it’s there when you need it! Ideal for sailing, fishing, tennis, golf, hiking or gardening!