comfortable fabric made from pure cotton, stitched logo on the side, 100% cotton, This is how you will find your hat size!, Just take a measuring tape and place it around the forehead and back of the head. The determined measurements in centimetres is your hat size. If no tape is available:, Simply take a piece of string and hold it against a ruler after you have taken measurements. Make sure a little air remains (so your new headdress is not too tight).