HeleiWaho Product Description (excerpt from the manufacturer's description) This hood is perfect for protection against the cold and wind in marine sports such as diving, surfing, and skin diving. It's reversible, using different fabrics, so you can enjoy two different styles with one item. Also, it comes in unisex sizes, so both men and women can wear it. M size: Suitable size Head circumference 57cm Neck circumference 37cm Plus or minus 2cm is acceptable. Additional Information: Reversible between skin and jersey. There are two small air vent holes on the top of the head. The tag can be removed by pulling it. Unused, but there are fold marks as shown in the images. Sorry, but the price is not negotiable. Thank you.