ADJUSTABLE SIZE, bucket hat with chin strap (note: color may fade a little if you use it in the sun alot!) FAST DRYING polyester dark fabric, even more great sun UV protection and drys fast, wear a hat : help prevent skin cancer! VENTS TO KEEP YOUR HEAD COOL, mesh to cover your ears from wind & sun SEMI HARD BRIM - stop the water smashing into your face when surfing, PROTECT YOUR kneck : removable flap covers your kneck helps protect from sun burn GREAT FOR MANY ACTION SPORTS including stand up paddle surfing, flat water race , cruise or fishing, kiteboarding, windsurfing, surfing, kayaking, canoe, hiking, (and other new action sports such as extreme all-weather gardening!)