# OEM/ODM Eyewear

When launching a custom eyewear brand or introducing a new signature frame collection, the journey from an initial design concept to the final, retail-ready product can feel like a black box. For designers, prototype customizers, and brand owners, the two most critical success factors are precision (making sure the glasses fit and look exactly as intended) and efficiency (getting to market before trends shift).

At Hermitin, we believe in complete transparency. To help you plan your next launch, we are breaking down our step-by-step custom OEM/ODM eyewear manufacturing workflow and explaining the exact timeline involved: 7 days for design, 15 days for prototyping, 25 days for mold-making, and 45 days for mass production.

When launching or expanding a private label eyewear line, one of the most critical decisions is selecting the raw materials for your frames. The material you choose dictates the target retail price, design flexibility, durability, and overall consumer perception of your brand.

Today, the optical industry is dominated by three main materials: Cellulose Acetate, TR90 (Grilamid), and Titanium. Each serves a distinct market segment and customer profile. As a premium Chinese acetate & titanium OEM/ODM factory, we break down these three materials to help you align your product selections with your brand’s market positioning.

Key Takeaways for Sourcing Eyewear Materials:

• Acetate: The premium standard for fashion and luxury brands, offering rich colors and adjustable organic feel.
• TR90 (Grilamid): Ultra-lightweight and highly flexible memory plastic, ideal for sports, kids, and mass-market activewear.
• Titanium: The apex of high-end optical engineering, providing feather-light weight, extreme durability, and corrosion resistance for executive eyewear.

Sustainability is no longer a niche marketing buzzword; it is a fundamental shift in consumer demand. In the eyewear industry, where plastic frames have dominated the market for decades, brands are facing increasing pressure from eco-conscious consumers, regulators, and ESG (Environmental, Social, and Governance) standards to adopt greener alternatives.

To meet this demand, premium eyewear manufacturers have developed Bio-Acetate (Eco-Acetate). But what exactly is bio-acetate, and how does it compare to traditional cellulose acetate? If you are a private label brand, optical retailer, or fashion startup, which material should you choose?

As a professional OEM/ODM eyewear manufacturer, we provide a detailed breakdown of Bio-Acetate vs. traditional Cellulose Acetate to help you navigate the sustainable future of eyewear.

When launching or expanding an eyewear brand internationally, e-commerce return rates can be a major challenge. One of the primary reasons customers return sunglasses or optical frames online is not the style or quality—it is the fit.

A frame that fits perfectly on a customer in Berlin may slide down the nose, rest uncomfortably on the cheeks, or cause eyelashes to rub against the lenses of a customer in Tokyo.

This mismatch occurs because of distinct variations in cranial and facial structures across different global demographics. To address these variations, the optical industry categorizes frame geometries into two primary fits: Western Fit (Standard Fit) and Asian Fit (Low Bridge Fit).

To help your brand build a successful global product line, we break down the technical differences between these two fit styles and explain how you can customize your designs for any target market.

Key Takeaways for Eyewear Fit Design:

• Nose Pad Adjustments: Asian Fit (Low Bridge Fit) requires deeper, curved nose pads set closer together (16-18mm) to prevent sliding down a lower nasal bridge.
• Pantoscopic Tilt: Western fits feature a steep tilt (8°-12°), whereas Asian fits reduce the tilt (4°-6°) to keep lenses clear of prominent cheekbones.
• Frame Curvature: Asian fit designs utilize a flatter front wrap angle and temples that bow outward to comfortably accommodate wider face profiles without pinching.

Metal frames are experiencing a massive resurgence in the premium eyewear market. From ultra-minimalist round wireframes and vintage-inspired double-bridge aviators to thick-rimmed geometric metal designs, fashion brands are increasingly incorporating metal into their seasonal collections.

However, “metal” is not a single, uniform material. When partnering with an OEM/ODM eyewear manufacturer to build your private label metal collection, you must choose the specific metal alloy that aligns with your brand’s pricing, weight targets, and durability requirements.

The three most common metals used in premium eyewear manufacturing are Titanium, Stainless Steel, and Monel.

Here is our comprehensive guide to help your brand choose the right metal for your next eyewear collection.

When launching a private label sunglasses collection, brands often spend 90% of their design energy on the frames—selecting the perfect acetate colors, tweaking the CAD shapes, or testing titanium hinges. However, the lenses are what your customers actually look through.

Choosing the wrong lens material can compromise your brand’s reputation. A cheap lens can cause optical distortion (leading to headaches), scratch within a week of use, or crack under pressure. Conversely, over-specifying high-end lenses for a budget sunglasses line can destroy your profit margins.

For premium eyewear brands and optical retailers, understanding the differences between CR-39 (organic plastic), Nylon (polyamide), and Polycarbonate (PC) lenses is essential for optimizing product quality and manufacturing costs.

As a professional OEM/ODM eyewear manufacturer, we provide an in-depth breakdown of these three dominant sunglass lens materials.