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UPF |
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Analogous to the SPF of sunscreen, UPF or ultraviolet protection factor designates the level of protection provided by a particular piece of clothing as determined by laboratory measurements. The UPF stands for Ultraviolet Protection Factor, a rating system similar to the more-familiar SPF (Sun Protection Factor) used to indicate the effectiveness of various sunscreen products. All of the hats in the collection are certified with an Ultraviolet Protection Factor of 50+. |
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