This is a UPF 50+ Hat for Premium Sun Protection. What is UPF protection? Follow this link for more information!
The Adams extreme outdoor cap is the pinnacle of baseball hat sun protection. This style will keep your face so protected it will be like you never left the house! The extreme outdoor cap is stocked with many features, including: An elongated 3 1/2 inch bill with green underbrim for added sun protection, UV resistant fabrics, comfortable and lightweight cotton/nylon blend, a nearly 9 inch long neck & shoulder flap with secret zipper pouch that extends throughout the entire flap, terry cloth inner sweatband, a adjustable chord cinch that will adjust size from small up to an extra large, and finally, a chord with alligator clip to defend against the wind. With all these features, if sun protection is what you desire, you have just met the best solution.
For the full brim version, please see the: Adams Extreme Condition