The Karen Keith tan pith helmet is a great summer style. It features lightweight 100% natural fiber construction, a comfortable terry cloth sweatband at the front, and an adjustable velcro closure that fits most heads up to about a large or 7 3/8. 

Dimensions:

Crown 4.75 Inches
Front Brim: 2.5 Inches
Rear Brim: 2.25 Inches
Side Brim: 2 Inches