We ensure precise and careful fulfillment. Kindly provide your prescription details to connect@cerqular.com, and our representative will assist you promptly.. Sustainable Bardot, Tortoise Prescription. No eco-waste, just eco-shades! Our sustainable collection is manufactured with Rilsan, a material produced from castor beans, making them eco-friendly and biodegradable. Coupled with sustainable green warehousing and shipping practices, we’re reducing the carbon footprint on our planet. Layers Of Protection. Premier UV 400 protection for both skin & face. Hand-assembled sunglasses. Anti-aging oversized design. Scratch & shatter resistant lenses. Size & Fit. Lens: 55mm. Nose: 15mm. Arms: 140mm. UV 400 Protection. All lenses come standard with Anti Reflective, Anti Scratch, and Hydrophobic coatings