Maui Jim Guardrails are polarized aviator sunglasses that combine a lightweight memory-metal frame with MauiBrilliant lenses for clear, high-contrast vision in bright conditions. Ideal for outdoor activities, they deliver durable fit and glare-blocking optics. Key attributes: Black | Gloss black | Memory metal | Polarized lenses | MauiBrilliant lens material | High light reduction (Neutral Grey) | Lightweight frame | Adjustable, non-slip Rabalon nose pads | Anti-corrosive traditional hinge | Adjustable bridge / double-bridge support | Modified aviator shape | Double bridge | High-gloss finish | Dimensions & fit: Eye: 57 mm | Bridge: 16 mm | Temple: 135 mm | Height: 43 mm | Medium fit | Composition & care: MauiFlex memory metal frame | MauiBrilliant lenses | Rinse lenses with lukewarm water and mild soap as needed; dry and polish with a microfiber cloth; store in protective case when not in use.