Rimless eyeglasses, are a type of eyeglasses in which the lenses are mounted directly to the bridge and/or temples. The style is divided into two subtypes: three-piece glasses are composed of lenses mounted to a bridge and two separate temple arms, while rimways (also called cortlands) feature a supporting arch that connects the temples to the bridge and provides extra stability for the lenses. Despite these shifts, they are unique among eyeglass styles in that they have never gone completely out of fashion, remaining an acceptable alternative through the years to more stylish designs.