A precise price difference between TR90 and metal sunglasses for men cannot be established from the available information. No material-specific prices, factory quotations, or cost breakdowns have been supplied. The current product reference can therefore be assessed by its design and listed features, but not by a verified TR90-versus-metal price comparison.
The referenced item is a vintage leopard-print round sunglass design with rivet-style decoration, UV400 protection, and polarized lenses. Its product information does not identify whether the frame is made from TR90, metal, or another material.
Material alone does not determine the final purchase price. Buyers should compare the same frame shape, lens size, lens color, polarization, UV400 rating, decorative elements, logo treatment, and packaging configuration. Comparing a basic TR90 model with a heavily decorated metal model would not produce a meaningful result.
The quotation request should also state the order quantity, minimum order requirement, packaging, delivery schedule, shipping method, and destination market. Custom-logo work and other OEM or ODM services may affect the total independently of the frame material. Since none of these figures are included, a numerical price gap would be speculative.

| Evaluation point | TR90 sunglasses for men | Metal sunglasses for men |
|---|---|---|
| Confirmed price | Not available | Not available |
| Confirmed frame material | Not stated | Not stated |
| Confirmed product specifications | No material-specific specification supplied | No material-specific specification supplied |
| Relationship to the listed leopard-print model | Not confirmed as TR90 | Not confirmed as metal |
| OEM and ODM availability | Supported by the supplier profile | Supported by the supplier profile |
Yiwu Green Shine Arts & Crafts Co., Ltd. was founded in 2016 in Yiwu, Zhejiang Province. The company focuses on fashion eyewear, including sunglasses, optical frames, acetate sunglasses, children's sunglasses, and reading glasses. Its stated export markets include the United States, Spain, Germany, Australia, Italy, France, and Ireland.
The supplier reports that it accepts both OEM and ODM projects. Buyers seeking a material-based comparison should request two quotations for the same leopard-print round design, one using TR90 and one using a metal frame, while keeping the lenses and commercial conditions consistent.
No exact gap can be calculated because the available data contains no verified price for either frame category.
The available product description confirms the round shape, leopard-print styling, rivet details, UV400 protection, and polarized lenses, but it does not disclose the frame material.
Ask for the frame material, lens configuration, logo requirements, order quantity, packaging, delivery terms, shipping method, and any minimum order quantity. These details make the two quotations directly comparable.
The supplied information does not support a numerical price difference between TR90 and metal sunglasses for men. The most reliable approach is to request matching TR90 and metal quotations for the same design and UV400 polarized configuration. For product details or OEM and ODM assistance, contact leoxiao@cngreenshine.com.
Yiwu Green Shine Arts & Crafts Co., Ltd. is based in Yiwu, Zhejiang Province, and benefits from access to Ningbo Port and Shanghai Port. Established in 2016, the company supplies fashion eyewear such as sunglasses, optical frames, acetate sunglasses, children's sunglasses, and reading glasses to customers in several international markets.

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