Glarefree Highly-efficient circular polarized lenses. No squinting, no staring, just perfect vision. * Polaroid"s premium 3D glasses are made with Thermofusion technology for distortion-free vision. * The frames and specially formed lenses create an extended field of vision. * High quality lightweight frames designed for extended wear. * Lenses provide vull UV protection and so can be safely worn outdoors. Nevertheless we do not recommend these 3D glasses for extended outdoor usage.