FOSTER GRANT Vintage Series Retro Sunglasses + Case Plastic Tortoise 3657 plastic frame plastic lens non-polarized Lens width: 50 Fashion Sunglasses-Foster Grant Brand. Special Vintage Series Includes Case and cleaning cloth. Square Retro look. 100% UV400 Protection Plastic Frame. Brown Tortoise & Brown Lenses Lens width is 50 mm. Non- Polarized