What's the Difference Between UPF & SPF?

When shopping for sun protection clothing, it's important to understand UPF vs. SPF. Check out Vapor Apparel's UPF 50+, high-performance sun protection apparel.

UPF vs. SPF: what's the difference?

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Ultraviolet protection factor (UPF) is primarily a measure of UVB

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What's the Difference Between UPF & SPF?

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