OverviewAspen combines unrivaled durability and sustainability with styling that's as timeless as the Colorado town it's named for. Zeal Optics See Grass frames combine recycled plastics and grass fibers to create a unique, durable frame with our lowest environmental impact to date. Reuse. Regrow. Reimagine. See the world more clearly with the unique plant-based polymer of Ellume Polarized, creating a high-purity lens for cleaner, crisper vision. Polarized lenses eliminate glare and block 100% of harmful UV rays, protecting against the risk of long-term damage to your eyes.