Yes, Swannies can be worn outdoors.
All Swannies are 100% UV rated and block 100% of UV light below 400nm, providing protection against ultraviolet exposure.
However, Swannies are primarily designed for indoor use and digital device environments. Most styles are not as dark as traditional sunglasses and are not polarized, so they are not intended to significantly reduce brightness or glare from direct sunlight.
If you are spending extended time in strong sunlight or require glare reduction for comfort, dedicated sun protection eyewear may be more appropriate.
You should never look directly at the sun, regardless of whether you are wearing protective eyewear.
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