Statement oversized geometric frame in tortoiseshell acetate. Dark brown lenses provide sun protection. Sleek bridge and wide temples for a fashion-forward look. These oversized tortoiseshell sunnies by DEREK LAM Sunglasses are giving off-duty celeb vibes to your weekend fit. Materials and Measurements Brown tortoise acetate square frames with brown lenses. 55mm x 19 mm x 143 mm. Don't have a Poshmark account? Sign up with my code DELBEC and get $10. Shop my closet on Poshmark! My username is @delbec.