COLLECTIONS Our collections are defined by the lens type used in the glasses. Lenses are the type of modified acrylic material that is in the glasses to achieve the desired purpose; readers, blue light blockers, sun, and progressive. SIZE OR FIT CliC sizing is listed using a range. This is because our adjustable temples allows for you to expand our glasses for a more ideal fit. Therefore, when you see a style sized as S-L, the "small fit" is when the temples are fully closed and the "large fit" is when the temples are fully extended. MAGNETIC CONNECTION The unique neodymium magnetic system allows the glasses to come together at the bridge. The head band is form-fitting and wraps around your head to ensure a snug, comfortable fit. Putting them on is simple. Just place the band around your head and let the magnets draw together at the bridge. Want to take them off? No problem. Just pull the magnets apart and the glasses will hang comfortably around your neck. Once CliC eyewear is around your neck they are almost impossible to misplace.