Calvin Klein is a fashion powerhouse, a brand that was established in 1968 and which has developed from a simple fashion label into a lifestyle brand. One of the secrets to the label's success has been the preservation of the aesthetic throughout all its lines 'simple, clean and chic. The range of sunglasses from Calvin Klein includes aviators, D frames and square style designs. There are oval and wayfarer styles, as well as cat eye, round and geometric arm sunglasses. The versatility of the range lies in the selection of lenses and frames that is available, from red, purple and black colours, through to animal prints, ombre and stripes.