OverviewAt the confluence of form and function lies Capitol. Its keyhole bridge, lightweight Z-Resin frame, and ProFlex Rubber ensure Capitol is a capable companion on any adventure. Ellume Polarized lenses eliminate glare and block 100% of harmful UV rays, protecting against the risk of long-term damage to your eyes. Zeal Optics frames and Ellume Polarized lenses are made from Z-Resin, a unique plant-based polymer derived from the castor plant. This durable plant-based material contributes to lighter frames and creates a high-purity lens for cleaner, crisper vision.