I purchased this frame during my last vision check-up but ended up not liking them on me after trying them back on at home. :/ Never taken out of its case or worn again. Frame currently has prescription lenses. I can confirm that this frame is extremely light and can barely be felt. Description: The Lightec collection captures the latest trends to give men and women an ultra-minimalist look. Lightec uses the latest innovative materials and techniques to create concepts that offer men and women a comfortable and lightweight option.