Choosing between TR90 nylon and metal frames is one of the most common decisions wholesale buyers face when building out a reading glasses range. Both materials have distinct advantages — and the right choice depends on your retail channel, customer demographic, and margin requirements.
What Is TR90?
TR90 is a thermoplastic nylon material developed specifically for eyewear frames. It is highly flexible, extremely lightweight (typically under 20g per pair), and resistant to impact and temperature changes. TR90 frames can be bent significantly without breaking or losing their shape — a property that makes them particularly well-suited to active users and buyers who prioritise durability.
What Are Metal Frames?
Metal reading glasses frames are typically constructed from stainless steel, aluminium alloy, or a combination of metals. They offer a more traditional aesthetic — slim profiles, classic shapes, and a premium visual weight that many consumers associate with optical quality. Metal frames are the dominant material in pharmacy and optical retail environments globally.
Durability Comparison
TR90 frames outperform metal in impact resistance and flexibility. A TR90 frame dropped on a hard floor is unlikely to bend or break. A metal frame — depending on the alloy and hinge design — may be more susceptible to deformation if dropped or sat on.
However, metal frames with stainless steel hinges and spring-loaded temples offer excellent long-term durability under normal use conditions. For retail environments where customers try on glasses repeatedly (pharmacy counters, optical stores), metal frames with quality hinges perform reliably over time.
Verdict: TR90 for active or outdoor retail environments. Metal for traditional pharmacy and optical retail.
Weight and Comfort
TR90 frames are significantly lighter than metal equivalents — typically 15–20g compared to 25–35g for metal frames. For consumers who wear reading glasses for extended periods (office work, reading), lighter frames reduce nose bridge pressure and ear discomfort.
This weight advantage makes TR90 a strong performer in office supply retail, corporate wellness programmes, and any channel where extended wear is a selling point.
Verdict: TR90 wins on weight. Relevant for extended-wear positioning.
Retail Performance by Channel
| Retail Channel | Recommended Frame | Reason |
|---|---|---|
| Pharmacy chains | Metal / Classic | Broad demographic appeal, trusted aesthetic |
| Optical retailers | Metal / Classic | Matches optical store environment and expectations |
| Sporting goods | TR90 | Lightweight, flexible, active lifestyle positioning |
| Online / Amazon | Both | TR90 for price-sensitive; Metal for premium positioning |
| Gift / travel retail | Foldable (metal) | Compact, high perceived value |
| Office supply | TR90 | Lightweight, extended-wear appeal |
Margin Considerations
TR90 frames generally carry a slightly higher unit cost than comparable metal frames due to the material and moulding process. However, the retail price positioning for TR90 is also typically higher — active lifestyle and lightweight positioning supports a premium price point in sporting goods and online channels.
Metal frames offer excellent margin in pharmacy and optical retail, where they are the expected product format and consumers are accustomed to standard retail pricing.
Which Should You Order First?
For buyers new to the reading glasses category, we recommend starting with a classic metal series as your core range — it covers the broadest demographic and performs consistently across most retail environments. Add a TR90 line once you have established baseline sales and want to expand into a second segment.
If your retail channel is primarily sporting goods, outdoor, or active lifestyle — start with TR90 and add metal as a secondary range.
MOQ and Availability
Both TR90 and metal reading glasses are available for wholesale from 50 pcs per style. OEM private label options are available across both frame types from 100 pcs.