proSPORT Rimless Bifocal Sunglasses Blue Blocking HD Vision Yellow Grey Smoke lens Mens Womens composite frame Composite lens non-polarized Lens width: 64 millimeters Lens height: 36 millimeters Bridge: 16 millimeters Arm: 119 millimeters INCREDIBLY FLEXIBLE FRAMES & NOSE PIECES  Stiff plastic sunglasses can pinch behind your ears. These bifocal glasses are extremely light weight and flexible, so they conform nicely around your head. You can wear these bifocals for hours while playing 18 holes of golf and not even notice they are on. Soft rubber nose pieces prevent slippage, so these polarized readers are perfect for cycling, tennis, baseball, and golf. IMPACT RESISTANT POLYCARBONATE LENSES  When shopping for sunglasses, eye protection should always be a priority. Polycarbonate is an impact resistant thermoplastic that is virtually unbreakable and extremely scratch resistant. Have you tried to break a CD (compact disc) before? It cant be done! CDs are made of polycarbonate. Your eyes are worth every penny you spend on sunglasses. NON-SLIP RUBBER NOSE & EAR PIECES: If you want to be on top of your game, you need sunglasses that dont slide down your nose, or fly off in the wind. If you to start to sweat, ordinary plastic nose pieces can hinder your performance. Rubber nose and ear pieces are soft and comfortable. Spend more time focusing rather than adjusting with these sunglasses. SAVE $$$ ON COMBOS! Our price for a single pair is an excellent deal. Now you can purchase 2 or 3 pairs of bifocal eye glasses for even a BETTER deal. You can try the HD Copper Lens on the golf course; or try yellow pair for night driving or riding. Keep an extra pair in the car or have a backup pair. NEAR INVISIBLE BIFOCAL LINE: : We all will need to wear bifocal eyewear at some point in their lives. But does the whole world need to notice those unsightly bifocal lines? The magnified reading area at the bottom of these lenses are injection molded, which means you cant feel the bifocal line on the lenses. The front of the lens is smooth, like nothing is there. Its visible from the back of the lens, however, but not so much on the front of the lens.