Quick Drying Baseball Cap Mesh Sun Hats

100% Polyester, thin soft and light material. Customized fit. Unique mesh structure, moisture wicking fabric works to help keep you dry and comfortable. The soft fabric fits your head better.The back opening is designed features an adjustable Adjustable closure.This thin and light running cap is only 2.1 ounces, It's a smaller hat, head Circumference is 21.6inch-23 inch but the tail of the hat can be adjusted, hat brim width is 8cm it hiking and running essential that won't weigh you down.