The Sunglasses Ray - Ban RB2140 Wayfarer, with Frame Squared in acetate, they are the perfect accessory for those who love a decisive style. The black color and the gray lenses give a modern look. Recommended for round and oval faces, since they add definition and structure to the features. Ideal for men and women. Ray-Ban Original Wayfarer RB2140 901/5F Black/Photochromic Grey Wayfarer Sunglasses in Black - buy online from Fashion Eyewear. Varifocal and Single Vision prescription lenses available. UK Delivery. A grand return from the '70s archives, the Ray-Ban Rb 2140 901/5F Photochromic is an oversized square model with an acetate frame that knows how to stand out. With a simple and linear construction, the glossy black frame is paired with photochromic grey lenses. This model represents the main ingredient of the charm of a pair of glasses that certainly doesn't go unnoticed.