Daphne's glamorous cat-eye shape meets Revo's innovative eco-friendly bio-acetate. This plant-based, biodegradable material is friendly to the planet while Revo's NASA-based polarized lens technology provides unmatched visual clarity. LENS: 6-base lens technology: A flatter profile, temple to temple. Revo high-contrast polarized Serilium+ lenses: Lightweight, impact-resistant, glare-reducing nylon. Revo Light Management System: Filters harmful UV, HEV, and Blue Light. Digital Device-friendly: Reduces glare and enhances clarity of digital screens. FRAME: Handmade bio-acetate frame: Completely organic, plant-based, sustainable, and 100% biodegradable. WARRANTY: All Revo sunglasses are covered against defects in material or workmanship for two years from the date of purchase. The warranty doesn't cover scratched lenses, or products that have been damaged through misuse or alteration. SIZE: 56-15-145