Ray-Ban Sunglasses Khal Bio-based - Cream Havana Frame Violet Lenses 51-20

Bio-based means that the material used for the frame is derived from renewable resources, reducing reliance on fossil fuels and lowering the product's environmental footprint.

Violet lenses are generally best suited for medium to bright light conditions. They can offer good contrast but may not be ideal for very low light or very intense glare compared to other lens tints.

The 51-20 size is a common medium fit. Measure the width of your current best-fitting sunglasses; if it's around 51mm for the lens width and 20mm for the bridge, this size is likely to be a good fit.

The possibility of replacing lenses with prescription ones depends on the specific model and local optician capabilities. It is advisable to consult with an optical professional.

Ray-Ban typically offers a limited warranty against manufacturing defects. Please refer to the product packaging or Ray-Ban's official website for the most accurate and current warranty information for your region.

The Cream Havana frame, being made of nylon, can typically be cleaned with a damp cloth. Avoid harsh chemicals or abrasive materials.

Carefully adjust the temples by gently bending them. For significant adjustments, it is recommended to visit an optician for professional fitting.

Use a clean microfiber cloth to wipe the lenses. If the smudge persists, rinse the lenses with cool water and a drop of mild soap, then dry with a microfiber cloth.

Inspect the frame for any signs of wear. If damage is present, consult the retailer or Ray-Ban customer service for potential repair or replacement options under warranty.