I use a yellow colored similar hat for several years without any problem. There's nothing wrong with the product. It went as well particularly in the summer and it when I go to South East Asia. I wanted to get one for my friend in Singapore. I distinctly ordered a large size. But an extra large came. I immediately tried to reorder the size I wanted. He was out of stock. I rather suspect that the extra large was sent to me because they ran out of the large. I return to this. Fortunately it was no problem doing so.