BUYER'S GUIDE

Eyewear Materials Guide: Frames and Lenses Explained

What the frame is made of and what the lens is made of decide how a pair of glasses feels, how long it lasts and what it costs to buy wholesale. Here is the short version for buyers.

Lens Materials

CR-39 (resin) — The workhorse. Light, optically good and inexpensive — the default for most plano and fashion frames.

Polycarbonate — Impact-resistant and thinner than CR-39. The usual choice for sports and children’s eyewear, and for anything sold against an impact standard.

TAC (polarized) — A laminated polarizing film used in sunglasses. Cuts reflected glare from water, snow and roads — a strong selling point in outdoor markets.

Nylon — Tough and flexible, often found in wrap and sport styles where the lens must survive flexing.

Glass — Optically excellent but heavier and more fragile. Rare in wholesale fashion eyewear outside specialist lines.

Frame Materials

Acetate — Plant-based plastic, warm to the touch, holds colour richly and can be polished. The premium look most fashion frames aim for.

TR90 / TR-90 — A lightweight, flexible memory plastic. Bends rather than snaps, which makes it a favourite for budget fashion and kids’ frames.

Metal and stainless steel — Slim, strong and adjustable. Common in aviator and half-rim shapes; stainless resists corrosion better than plated alloys.

Aluminium — Very light, used in sport and streetwear styles where low weight matters more than rigidity.

Titanium — Strongest per gram, hypoallergenic and the most expensive. Usually reserved for premium lines.

Wood and bamboo — Niche, distinctive and market-specific. Sell well in gift and eco-conscious channels.

Lens Treatments and Coatings

UV400 — Blocks UVA and UVB up to 400 nm. Treat this as the baseline claim for sunglasses, not a premium extra.

Polarized — Removes glare rather than just darkening. Easy to demonstrate to a customer, which makes it an easy upgrade to sell.

Mirrored — A reflective coating on top of the tint. Mostly a fashion and performance signal.

Gradient — Tint fades from dark at the top to light at the bottom. Popular in fashion sunglasses.

Anti-reflective (AR) — Reduces reflections on the back surface; common on clear and blue-light plano lenses.

Blue-light filtering — Reduces the blue part of the spectrum. A popular retail story for plano lenses; the claim you can make depends on your market, so confirm at enquiry stage.

What Actually Matters When You Buy

For wholesale buying, three things decide whether a style reorders: hinge quality (metal core or plain pin), lens thickness and tint consistency, and whether the finish survives handling. A cheap frame that cracks at the hinge costs you far more in returns than it saves on the unit price. Ask us for a sample before you commit to volume — that is exactly why we keep minimums low.

Want a Sample Before You Commit?

Tell us the styles you are considering. Samples and a wholesale quotation are available within 24 hours.

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