Versatile, Functional, Comfy, and Stylin
Interchangeable sunglasses I've used in the past have typically suffered from one of two shortfalls; either you have to nearly break the frame to pop the lens out, or the body is too flimsy. These shades make a good compromise; the twist-lock allows the lens to pop out super easy, and needless to say the optics are fantastic. I typically use the rose lenses for anything from climbing to cruising around town, and slap in the darker ones for particularly bright days.
Good to note that these are designed for a larger face.