Overview
The Ray-Ban RB4378 delivers a modern square silhouette with soft rounded edges, crafted in injected plastic for a clean yet refined look. Designed as a unisex model, this style is offered in a range of finishes and lens treatments — ideal for everyday wear, travel, or elevating your casual style.
Key Features
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Unisex full-rim injected plastic frame — lightweight, durable, and stylish
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Available in multiple frame finishes (for example: Black with Grey Gradient lenses)
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Lens widths commonly around ~54 mm (with matching bridge and temple specs)
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100% UVA & UVB protection across all lens variants
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Contemporary styling with subtle angular lines for a refined front profile
Sizing & Fit
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Lens width: ~54 mm
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Bridge width: ~16 mm
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Temple (arm) length: ~145 mm
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Fit type: Medium — designed to complement a range of face shapes without overwhelming them
Why Choose These Sunglasses
If you’re looking for eyewear that combines modern geometry with versatile finishes and reliable protection, the RB4378 is an excellent choice. Its square-with-soft-round profile fits many face shapes, and the variety of available finishes and lenses makes it easy to match your look and lighting conditions. Ideal for daily wear, travel or whenever you want sunglasses that look stylish and perform well.
Product Details
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Model: RB4378
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Frame Material: Injected Plastic
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Frame Shape: Square with soft rounded edges / Full Rim
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Lens Options: Solid tints, Gradient finishes (variant dependent)
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Gender: Unisex
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Protection: 100% UVA & UVB