LensCovers® Wear Over Sunglasses-Rectangle Frames are Ideal for round and oval shaped faces.</br>LensCovers® are UV400, 100% UVA and UVB and polarized for your eye protection! Only LensCovers® have been certified to meet ISO ISO 12312-1:2013 quality standards. Available upon request.</br>LensCovers® are available in Extra Small, Small, Medium, Large Slim and Large. See measuring instructions below or image with measuring instructions for proper fit. Other LensCovers® sizes are in a separate listing.</br>LensCovers® fit over men, women, and children's prescription glasses! Side Lens for better peripheral vision and eye protection.</br>For correct LensCovers® measurement, fit, and quality, purchase from "Sold by LensCovers®" as these are the original LensCovers® Sunglasses.</br></br>Product Description</br></br><p><b>LensCovers Wear Over Sunglasses - Rectangle Frame</b><p> Both <b>Round and Oval </b>faces are ideal for LensCovers Rectangle Wear Over Frames: If your face is nearly as wide as it is long, without a prominent jawline you have a round face. For round faces, rectangular frames help elongate the face, breaking up the face structure, making it appear longer and thinner. An oval face is defined by evenly proportioned features - cheekbones that rest higher than the middle of your face and a chin that is slightly narrower than the width of your forehead. Rectangle frames highlight your cheekbones and make your jaw appear thinner and more angular. <P><b>How to measure your prescription frames for LensCover sunglasses:</b><br> 1- Measure the widest part of your prescription frames left to right, this is the "width". Next measure the height of the lens with frame included. <br>2- Choose the LensCover frame (below) that is slightly larger in width and height than your frame measurements. <p><b>LensCovers Extra Small</b> is 4-15/16 inches x 1-1/2 inches high<p><p><b>LensCovers Small</b> is 5-5/16 inches wide x 1-5/8 inches high<p><b>LensCovers Medium</b> is 5-1/2 inches wide x 1-3/4 inches high <p><b>LensCovers Large Slim</b> is 5-11/16 inches wide x 1-7/8 inches high<p><b>LensCovers Large</b> is 5-3/4 inches wide x 2-1/8 inches high<p> For example, if your prescription frames measure 5-1/4 inches (width) x 1-1/4 inches (height), the correct LensCovers Frame would be size Small. <p>Hard Case for LensCovers are available under a separate listing.</br><br/>http://www.amazon.com/gp/product/B00KOSSKKU