Material: 65% Cotton, 35% Polyester, lightweight, quick-drying, makes your head breathable on a sunny day Specifications: Head circumference: 22.4"-24.8", crown depth: 4.9inch, brim: 3.9" wide, it fits comfortable over most headwear Effective Protection:SPF 50+ sun protection, 360 degree anti ultraviolet, protect your face, ears and the back of your head from the scorching summer sun Mosquito Head Net: The fine mesh has small holes that protect against all kinds of bugs and insects including mosquitoes, flies, bees and no-see-ums without the use of dangerous chemicals or sprays Special zipper notch for drinking, but the original state is closed, it should be cut off at first use All Outdoor Activities: Perfect for walking, camping, hiking, fishing, hunting, gardening and outdoor working