TR90 Eyewear Frames: Why Frame Construction Matters for Optical Retailers

When evaluating wholesale eyewear, frame material is only part of the story. How different materials are used within the frame construction can also affect the frame's feel, flexibility, appearance, and overall positioning.

TR90 is often used as a primary frame material, but it does not always have to be used throughout the entire frame. It can be combined with materials such as stainless steel or propionate to create different frame constructions.

For optical retailers, understanding these combinations can make it easier to build a more diverse and purposeful eyewear collection.

Why Is TR90 Used in Eyewear Frames?

TR90 is a thermoplastic material valued in eyewear for its lightweight construction and flexibility.

These characteristics make it suitable for everyday optical frames, particularly styles where wearing comfort and practical construction are important.

However, the way TR90 is incorporated into a frame can vary.

A frame may use TR90 throughout its construction, or combine it with another material to achieve a different balance of performance, appearance, adjustability, or cost.

3 Common TR90 Frame Constructions

1. Full TR90 Frames with Stainless Steel Temple Pins

Some frames use TR90 throughout the main frame construction while incorporating a small stainless steel pin into the end of the temple.

The YouMe 31 series is an example of this construction.

The TR90 frame provides a lightweight feel and a degree of flexibility, while the stainless steel temple pin provides an additional point for adjustment.

This type of construction can be useful when a frame needs to accommodate different fitting preferences.

The material combination also considers the practical requirements of optical lens installation. TR90 is designed to handle the heat involved in lens fitting when properly processed, helping reduce concerns about the material becoming excessively brittle during installation.

2. TR90 Front with Propionate Temples

The YouMe 32 series uses TR90 for the front of the frame and propionate for the temples, along with a temple pin.

This construction demonstrates how different materials can be selected for different parts of the same frame.

The TR90 front provides the lightweight and flexible characteristics associated with the material, while propionate temples offer an alternative material option that can help manage overall product cost.

For wholesale buyers, this type of construction can provide another way to balance material characteristics and product positioning.

3. TR90 Front with Stainless Steel Temples

The YouMe 61 series combines a TR90 front with stainless steel temples.

This hybrid construction brings together the lightweight characteristics of TR90 with the structured appearance of stainless steel.

The stainless steel temples also feature a multi-layer plating process, which is designed to create a smoother, more refined surface finish and help improve resistance to everyday wear.

For retailers, this type of combination can create a frame that looks and feels different from an all-TR90 design while maintaining a lightweight front construction.

Why Does Frame Construction Matter to Optical Retailers?

For optical retailers, understanding frame construction can help when selecting products for different customer preferences and price points.

Rather than evaluating frames only by their material name, buyers can consider where each material is used and why.

Lightweight Everyday Styles

TR90 is well suited to collections focused on lightweight everyday eyewear.

These frames can serve as practical options for customers who prioritize a lighter frame and flexible construction.

Hybrid Material Designs

Combining TR90 with stainless steel or propionate creates another level of product variety.

Hybrid construction can help differentiate frames through their temple design, surface finish, adjustability, and overall appearance.

This is particularly useful for retailers who want to offer multiple styles without relying on a single frame construction.

Different Price Points

Material combinations can also support different product positioning.

For example, combining a TR90 front with propionate temples can provide a different cost structure from a TR90 frame with stainless steel components.

This gives wholesale buyers more flexibility when building an assortment across different price points.

TR90 Is Not a One-Size-Fits-All Material Choice

One of the advantages of working with TR90 is that it can be incorporated into different frame constructions.

A collection might include:

• Full TR90 frames for lightweight everyday styles
• TR90 frames with stainless steel temple pins for added adjustability
• TR90 fronts with propionate temples for a different cost balance
• TR90 fronts with stainless steel temples for a hybrid metal-and-plastic look

This variety allows retailers to build a more differentiated collection without moving entirely away from the characteristics of TR90.

How to Evaluate TR90 Frames for Your Collection

When sourcing wholesale TR90 eyewear, consider more than whether the frame is simply labeled “TR90.”

Ask:

Where is TR90 used?
Is it used throughout the frame or only in the front?

What materials are used for the temples?
Stainless steel, propionate, and other materials can create different characteristics and positioning.

How is the frame constructed?
Look at the relationship between the front, temples, pins, hinges, and other components.

Who is the frame designed for?
Consider whether it fits your everyday, fashion, premium, or value-oriented assortment.

How does it complement your existing collection?
A good wholesale assortment should provide meaningful differences between styles rather than simply offering many similar frames.

TR90 Frame Construction at Mutual Optics Inc.

Mutual Optics Inc. offers several YouMe series that demonstrate different approaches to TR90 frame construction.

The YouMe 31 combines a TR90 full frame with stainless steel temple pins.

The YouMe 32 uses a TR90 front with propionate temples and temple pins.

The YouMe 61 combines a TR90 front with stainless steel temples and a multi-layer plating process.

These different constructions give optical retailers more options when building an assortment around lightweight frames, hybrid materials, different finishes, and different price points.

Frequently Asked Questions

Are all TR90 eyewear frames constructed the same way?

No. TR90 can be used throughout a frame or combined with other materials. Different constructions can change the frame's feel, appearance, adjustability, and product positioning.

Why are stainless steel pins used in some TR90 frames?

A stainless steel pin can provide an additional point for temple adjustment. This can help accommodate different fitting preferences.

Can TR90 be combined with stainless steel?

Yes. TR90 and stainless steel can be used together in hybrid frame constructions, such as a TR90 front with stainless steel temples.

Why combine TR90 with propionate?

Using propionate for the temples can provide an alternative material and help manage the overall cost structure of a frame while maintaining a TR90 front.

Final Thoughts

For optical retailers, understanding frame construction can be just as useful as understanding individual materials.

TR90 provides a versatile foundation for lightweight eyewear, but combining it with materials such as stainless steel or propionate can create different designs, finishes, fitting options, and price positions.

When building a wholesale eyewear collection, looking at how materials work together—not simply which material is used—can help you create a more balanced and differentiated assortment.