This is a replacement of a beloved lost hat. Although my lost hat was of a different color, and I would have loved that color again, it is no longer available. This hat will be a good replacement. This is a great hat for all water activities. I bought it for my next year’s ocean trip. The chin strap holds the hat in place while swimming or other related water or outdoor activities, and the neck flap protects the neck. This hat is no longer available on most sites, and the vendor has new choices to replace it.