Prada's Iconic Baroque Swirl Arm sunglasses. Crafted in glossy tortashell acetate, these shades feature round subtle gradient lenses and baroque swirl-shaped arms. Complete with a case, these sunglasses are a timeless statement of Italian craftsmanship. These shades feature round subtle gradient lenses and baroque swirl-shaped arms. Complete with a case, these sunglasses are a timeless statement of Italian craftsmanship.