TOPSKY Women's Outdoor Visor Quick-Drying Uv Ultra-Light Breathable Cap Outdoor fabrics, quick drying. Few calories reducing when sweat gasification 360 Degree UV Protection,two sides design, front sidewaterproof and back side Breathable Light and comfortable, portable for carrying Head circumference for this hat is 58cm, hat visor is 9cm,Adjust rope is 33cm. Breathable wicking mesh and waterproof fabrics, good for outdoor sports