squaregarden Sun Hats Neck Cover Fishing Cap Lightweight Ultra Thin Flap Hat polyester MATERIAL:100% polyester.lightweight,ultra thin(only 2 ounces), quick drying polyester and ventilation mesh construction for a good breathability,moistue wicking,comfortable to wear. ONE SIZE FITS MOST.Size details(approx):brim:3.5"/9cm;height:4.5"/12cm;circumference(outer):18.8"-22"/48-56cm,adjustable tie on back.Fits best from 20 3/4 inches to 21 7/8 inches head girth and 6 5/8 -7 hat size. SUN PROTECTION:Large brim and back flap will provide full protection for face, neck and ears,protect your skin from sunburn,good performance of anti-UV. OUTDOOR USED: Foldable,easy to carry.Ideal for travelling,hiking,fishing,gardening,sightseeing,camping,hunting, sailing, cycling,boating.Great for beach,pool,park and any other outdoor sports activities. Ultra thin lightweight sun hats for women and girls.Package included:1x cap;Weight Approx:55 gram/2 OZ.