Ray-Ban Sunglasses Chris 4187 622/8G Rubber Black Gradient Grey. This retro style is given the matt treatment which is a popular style trend at the moment. Sleek metal temples merge with the rubber effect on the frame and are given a flourish with the keyhole shaped bridge. This is the more masculine version of the very popular 4171 Erika model. Ray-Ban Chris sunglasses are a stylish new addition to the Highstreet collection. These unisex sunglasses are designed with unique style cues taken from the Erika style, but spun into a slightly more masculine shape with square lenses and a less circular frame shape. Chris RB4187 Sunglasses have been crafted with a gummy and rubberized frame finish, giving these trend-setting sunglasses an exclusive textured feel. The Ray-Ban Chris epitomizes modern-day fashion packed into a lightweight, comfortable design. Choose Chris in traditional black or tortoise frames or some bolder frame colors such as blue, green, and red that will ensure you don't go unnoticed.