Billie is a soft, oval shaped frame.  It is an easy to wear, modern shape that is stylish, fresh, cool and directional. The amethyst coloured, crystal, eco acetate frame will complement any face and work with all skin tones. The unusual smoke to lilac lenses are and pretty to look through and they are to look out of. The better you care for anything, the longer it will last so please look after your sunglasses. If you wear them on your head they will stretch so please avoid this. Keep them in the case to keep them safe. Clean them with a non abrasive cloth like the one that came with them. It is possible to reglaze our frames with a prescription lens, however do check with your optician as there can be restrictions on the size of the lens they are willing to glaze. All of our sunglasses comply with British and European standards comply with BS EN ISO 12312-1: 2013+A1: 2015 Filter category 3 - High protection against sun glare Warning: not for direct observation of the sun