Hackett Bespoke Sunglasses. Model Number HEBS254. Shape: Square. Lens Width: 53mm. Lens Bridge: 19mm. Arm Length: 145. Frame Material: Acetate. Frame Color: Tortoise. Lenses Type: Grey . Rim Style: Full-Rim. UPC/EAN Code: 840311405657. Hackett Bespoke Tortoise Square Mens Sunglasses