【Product Description】 【Cooling Material & UV Protection】Main material: Cotton. Reversible sun hat, the surface is made of cooling fabric, achieving excellent breathability, UV protection rate of 99% or more, UPF50+, and the back uses cotton material, which is soft and comfortable to the touch. As a UV protection measure, it's a perfect hat for the strong summer sun. 【Size】Large brim that covers the face, head size 56-58cm, brim approximately 13cm, height approximately 10.5cm, weight is only 97g, suitable for any face shape. The large brim provides excellent protection against UV rays. It protects the face, the back of the neck, and the ears from sunburn. 【With Wire】A wire is added around the brim, allowing the brim to be adjusted freely. You can fold the brim to your liking, so you don't have to worry about not being able to see in front of you. It has a natural and elegant feel! 【Removable Chin Strap】With a removable chin strap inside the hat, you can use this UV cut hat with peace of mind without the hat being blown away on windy days. There are loops on the left and right sides of the back and front of the hat body, so you can remove the strap when there is no wind and it won't get in the way. Recommended for picnics, mountain climbing, and walks! 【90-day free warranty】