This Marines Cool Fit Performance Boonie offers reliable, all-day sun protection with its UPF 50 rating, wide snap-up brim, and adjustable chin strap. Made with Cool Fit 100% Polyester, it is lightweight and breathable for maximum comfort and moisture wicking to keep you cool and dry.

• S/M fits 6 7/8 - 7 1/4 
• L/XL fits 7 1/4 - 7 5/8
• Unstructured crown
• Wide snap up visor and adjustable chin strap
• Designed and tailored using cool fit fabric for a lightweight feel and athletic fit