These sunglasses feature HD polarized lenses that provide clear vision and are 99% effective in eliminating glare and reflected scattered light. Weighing only 24.4g, these lightweight sunglasses are virtually invisible on the face, with no nose pressure even after long periods of wear. Made from skin-friendly, anti-allergy materials, they are comfortable to wear. The matte texture TR frame is non-irritating and fits most head and face shapes, although they may loosen on narrow faces when looking down. The ergonomic screwless temples, integrated lenses, and nose pads ensure stability and comfort.