Cali Life Co. Blog

  • What Does UV400 Protection Mean for Sunglasses?

    When shopping for sunglasses, you'll often see "UV400" listed as a feature. But what does it actually mean, and why does it matter? UV400 means the lenses block 100% of ultraviolet light up to 400 nanometers in wavelength — which covers the full spectrum of both UVA and UVB radiation. It's the g... View Post