Thank you for viewing. This is a surf hat I purchased new a few years ago at a Billabong shop. It has an adjustable chin strap for a comfortable fit. The size is about 56cm. The strap can be folded inside, so you can use it as a regular hat. Of course, it's for surfing, so it's fine if it gets wet. - Brand: Billabong - Color: White (slightly yellowed) - Style: Bucket Hat - Adjustable: Velcro - Inner Material: Nylon Thank you.