The Equi Cool Down Beanie is a head cooling beanie designed to keep you cool for hours without refrigeration. Featuring an elastic band and mesh top, it fits heads from 21 to 25 inches (533mm). Simply wet, wring out the excess, and wave to activate the cooling effect. Suitable for equestrians, joggers, hikers, and more, it can be worn under a hat or helmet. Cooling mechanism keeps you cool for hours, even in high temperatures Elastic band and mesh top for a comfortable fit on nearly all head sizes No refrigeration needed - simply wet, wring & wave Can be worn under a hat or helmet Reusable and washable: can be hand or machine washed separately Keeping it wet provides all-day cooling in high temperatures Suitable for equestrians, joggers, hikers, and more Colour: BlueSize: Fits 21 Inch - 25 Inch (533mm)