Consciously Created Sunglasses for a Brighter Future. The version 3 Sustainable Sunglasses by Grech & Co. are featured in an eco-friendly break resistant material - offering higher durability and longevity for use through its flexible form. Accompanying the new material of the V.3 sunglasses are five new Grech & Co. patterned sunglasses variations in 3 sizes including baby, child and adult.