Head 'N Home Handmade Hats - SolAir Brand Cabana Steel (Gunsmoke) Breathable Mesh Sun Hat - Size Medium/Large Polyester Made in USA Polyester and nylon mesh hat that is lightweight and extremely durable. Laminate under the top of the hat and the brim provides excellent sun protection- blocking 80% of the sun's rays- while the mesh crown in open and airy to provide cooling airflow. 4 1/8" Crown - 2 5/8" Brim - 1/2 Hatband Packable & Hand Washable - UPF 50+ - Made in USA Before purchasing, see Sizing info for instructions on determining the proper hat size to order.