Women's cap designed to be worn in extreme heat. The inner built-in sweatband made of cooling Iso-Chill material and mesh panels will be appreciated not only on the golf course. One-size model with the possibility of additional modification. durable woven fabric provides flexibility and a great feel when worn Stretch mesh back panel and laser-perforated side panels for versatile ventilation Iso-Chill material helps dissipate body heat, so it's cool to the touch adjustable buckle closure