Ultra-light, particularly when fitted with polycarbonate lenses, they are simple and unobtrusive and can seem almost invisible on the face.

a pair of virtually unbreakable rimless spectacles that are so light you'll hardly notice you're wearing them. The frames are manufactured from tough, flexible beta titanium, and the lenses, though untinted, provide total UV protection.

Stainless Steel \’stan-les ’stel\  
An abundant, sturdy, non-corrosive metal; extremely lightweight with an ultra-slim, sleek profile; immune to environmental effects that deteriorate other metals; applied finishes do not wear off or discolor on good quality stainless steel; flexible, easily adjustable and not readily damaged by adjusting tools.