Costa Del Mar S4006 Loreto Sunglasses with Blue mirrored color-enhancing glass lens technology that blocks 100% UV rays. Fully adjustable nose pads allow customization for the perfect fit and help reduce fogging. Lenses are coated to provide scratch resistance, repel water, and sweat for easy cleaning. Sam's Club is committed to offering quality products and services at an exceptional value. To serve this goal, these products were not purchased directly from the manufacturer or its authorized distributor but from a third-party dealer with strict controls to verify authenticity and quality. Some manufacturers limit or exclude their warranties on these products. However, these items remain fully covered by Sam's Club's 100% Merchandise Satisfaction Guarantee. If you are not satisfied with your purchase for any reason, return your item and we'll replace it or provide a refund.