Beyond the Lens: A Guide to By Charley’s Premium Frame Materials

Choosing the right frame material is just as important as the lenses. Whether you prioritize the featherlight flexibility of TR90, the handcrafted luxury of Acetate, or the durable affordability of PC, understanding these materials ensures your By Charley sunglasses fit your lifestyle and your aesthetic perfectly.

At By Charley, we believe that high-end fashion should never compromise on comfort. Different activities—from a high-stakes business meeting to a sunny day at the beach—demand different physical properties. This guide breaks down the science behind our frames so you can shop with confidence.

Acetate (Cellulose Acetate): The Art of Handcrafted Luxury

Acetate is the gold standard for high-end eyewear, known for its deep gloss, rich color patterns (like our signature tortoiseshell), and hypoallergenic properties. It is a plant-based plastic that feels "warm" to the touch and offers a premium, substantial weight.

Unlike standard plastic, Acetate is made from wood pulp and cotton fibers. This allows for the vibrant, multi-layered colors seen in models like The Orin or The Kael. It is easily adjustable by opticians, ensuring that your "Old Money" style frames provide a bespoke fit that lasts for years.

TR90 (Thermoplastic): The Featherlight Performance Hero

TR90 is a Swiss-developed thermoplastic known as "memory polymer." It is incredibly lightweight, flexible, and impact-resistant, making it the ideal material for those who prioritize all-day comfort and durability during outdoor adventures or long commutes.

If you’ve ever worried about your sunglasses snapping under pressure, TR90 is the answer. It can bend significantly and return to its original shape. For By Charley’s more active or minimalist styles, TR90 provides that "barely-there" feel without sacrificing the bold, modern silhouettes our community loves.

Polycarbonate (PC): The Durable Everyday Essential

Polycarbonate (PC) is a high-performance, shatter-resistant material that offers incredible toughness at an accessible price point. It is the go-to choice for fashion-forward styles that require high impact resistance and a sleek, polished finish.

Often used in safety glasses and sports gear, PC frames are virtually unbreakable. At By Charley, we use high-grade PC for styles that demand a crisp, clean-edged look. It’s the perfect material for the savvy shopper who wants a reliable, trendy accessory that can keep up with a fast-paced urban lifestyle.

Metal & Alloy: The Sleek Vintage Silhouette

Our Metal and Alloy frames, provide a slim, structural elegance that plastic cannot replicate. These frames are lightweight, corrosion-resistant, and offer a timeless, minimalist aesthetic that anchors the "Vintage High-end" look.

By using high-quality plating and slim-profile alloys, By Charley ensures that our metal frames are both sturdy and hypoallergenic. These materials allow for the intricate bridge details and thin temples that define the iconic pilot and retro-round shapes, offering a sophisticated contrast to our bolder acetate pieces.

Matching Material to Your Vibe

Your choice of material defines your wearing experience. Choose Acetate for luxury and color depth, TR90 for unmatched flexibility and lightness, or PC for durable, everyday fashion. No matter the material, By Charley guarantees polarized protection and 100% UV safety in every pair.

Investing in the right frame material is the secret to a long-lasting accessory wardrobe. Whether you are building a "Clean Girl" aesthetic or a "Parisian Cafe" vibe, By Charley’s diverse range of materials ensures there is a perfect match for your face shape, skin sensitivity, and style preference.