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Frames:
Swiss Material
Swiss Material System
Unbreakable

Lens:
UV Protection Standards
Quality Control
Polycarbonate
Light Filtration
Color Filtration
Polarization
Lens Packages for Interchangeable Lens Models

Light Science: Visible Light & UV Rays
The Electromagnetic Spectrum
Visible Light
UV Rays

Interchangeable Lenses
Instructions

Unbreakable

What do we mean by “unbreakable eyewear”?
Numa warrants that under normal wear and tear, the frames will not break.  (See our Limited Lifetime Warranty for full details.)
What is “normal wear and tear”?

“Normal wear and tear” includes but is not limited to: scaling a cliff face, downhill mountain biking or skiing, parachuting, hiking rugged terrain, dropping your Numas on a hard surface, accidentally stepping or sitting on them, and even letting your toddler play with them.


The Sunglass Knot - Can your shades do this?

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