The Legionnaires Double Layer Hat with Ponytail Hole is designed with a hidden ponytail hole in the back of the hat, making it more comfortable for women with long hair. The hat is made from 100% Polyester and has a UPF50+ rating for UV protection fabric, the highest rating achievable. It blocks UVA and UVB rays and helps minimize sun exposure. The Legionnaires Double Layer Hat with Ponytail Hole is suitable for fishing and has a comfortable 12. 5 cm brim size with an 18 cm neck flap that is optimized to protect your face and neck from the sun without affecting your vision. The neck flap has breathable mesh on both sides to expel perspiration and keep the neck cool in the summer. The surface of the The Legionnaires Double Layer Hat with Ponytail Hole is made of the latest professional outdoor waterproof fabric, which is tightly stitched on the brim to provide the hat with excellent waterproof performance. The adjustable chin strap securely holds the cap on your head to help you fight the wind. This is a professional outdoor fishing hat that can withstand strong wind and rain. The The Legionnaires Double Layer Hat with Ponytail Hole is moisture wicking and breathable, moving sweat to the fabric outer surface to minimize saturation and increase comfort. It also has fast moisture ventilation to expel perspiration through the large breathable mesh on the top of the hat. The head circumference size is adjustable from 54 58cm, with an internal rear drawstring on the crown to customize the fit and keep the headwear in place. The The Legionnaires Double Layer Hat with Ponytail Hole is also easily packable/portable for storage in your backpack.