• Make sure the brim extends far enough out from your head to provide ample shade for both of your shoulders, especially if you're keeping them bare. The back of the neck and the shoulders receive the brunt of the sun's radiation because they are at the top of your body where the sun is beating down the hardest. Consequently, these are also the most sensitive parts of your body. The best way to keep them protected is to have some "natural" shade that follows you everywhere.
• Look for a hat with a UPF of 50+. This is the highest rating of ultraviolet protection in clothing. It allows less than two percent of the sun's radiation through, so you know that it offers very strong protection. Aside from being the clothing version of SPF, UPF is also important because it measures protection against both UVA and UVB rays, unlike SPF's measurement of UVA only. Hats with a high level of UPF offer better protection against sunscreen of any kind.
• If you're spending time in a windy area, make sure the hat sits snuggly on your head. There is nothing worse than trying to run along the seashore to catch a runaway sun hat, so make sure it fits snugly! Use a chin strap to help keep looser hats on your head.
• Consider different hats for different activities. In you're playing sand volleyball, you might be worried about peripheral vision, so consider swapping out your hat when you hit the sand. Just be sure to slather sunscreen on any exposed areas and switch back to the wider hat after the game is over.
Of course the other glaring error in the list at the beginning of this article is not making sure that these items have some level of sun protection on them. Australia is located right near the equator, and they have the highest skin cancer rate in the world! If the rise in skin cancer in Australia is any indication of what the rest of the world can expect in coming years, then you can't start protecting yourself too soon.
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