Amazon.com: AO Sirmont Sunglasses - Black Gunmetal - True 。Brand new, never worn American Optical Sirmont sunglasses in Black/Gunmetal. This is the iconic unisex browline frame known for its sharp, vintage-inspired silhouette and high-quality metal/acetate construction. Model: Sirmont – Black/GunMetal Size: 51-21-145 These retail for $220–$260 depending on the lens option. Lenses are pristine with no scratches, frame is flawless, and nose pads are clean and clear. Includes a premium protective case (not the original AO case). Details: • Brand: American Optical • Model: Sirmont – Black GunMetal • Size: 51-21-145 • Condition: New / Never Worn • Unisex • Retail: $220–$260 • Includes: protective case (not original case) A timeless, flattering style that suits every face shape — perfect for everyday wear or adding a sharp, classic statement to any outfit. Smoke-free home.