Material: 65% cotton; 35% polyester

With adjustable strap inside; 

Hat Circumference: M: 56-58cm/22"-22.8", Brim Width: 7cm/2.75", Height: 12cm/4.73"; L: 58-60cm/22.8"-23.6", Brim Width: 8cm/3.15", Height: 12cm/4.73"

Breathable, lightweight and comfortable for all-day wear