This is a pair of unisex memory plastic full-rim eyeglasses made from unbreakable TR90.They might be the most comfortable glasses you will ever wear. The frame features in extremely light weight, super-shape-retaining durability and high heat-resistance, bringing you unpredicted comfort for all day long wear .They also fit large heads well and can protect you from any attack during sports and leisure time but they just weight up to 50% lighter than acetate frames. The medium rounded rectangular shaped lenses are accompanied with long and slender temples, revealing a smart and elegant look. These neat frames should be on the top of the shopping list for students and office elites. The total weight with lenses is 15g.