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How To Tell If Coach Sunglasses Are Glass Or Plastic

When it comes to sunglasses, Coach is a brand that exudes style and sophistication. With their wide range of designs and high-quality materials, Coach sunglasses are a popular choice for fashion-conscious individuals. One question that often arises when purchasing Coach sunglasses is whether the lenses are made of glass or plastic. In this article, we will explore various methods to help you determine if your Coach sunglasses have glass or plastic lenses. So, let's dive in and unravel the mystery!

The Importance of Knowing the Lens Material

Before we delve into the methods, let's understand why it's crucial to know whether your Coach sunglasses have glass or plastic lenses. The lens material can significantly impact the durability, clarity, and overall quality of your sunglasses. Glass lenses are known for their exceptional optical clarity, scratch resistance, and resistance to distortion. On the other hand, plastic lenses are lightweight, shatter-resistant, and often come with built-in UV protection. Knowing the lens material will help you make an informed decision based on your preferences and needs.

The Visual Inspection

The first method to determine the lens material is through a visual inspection. Hold your Coach sunglasses up to the light and examine the lenses closely. Glass lenses tend to have a distinct reflective quality, giving off a slight mirror-like effect. They may also exhibit tiny bubbles or imperfections, which are characteristic of glass. On the other hand, plastic lenses usually have a smoother surface and may appear more transparent. Keep in mind that this method may not be foolproof, as some plastic lenses can mimic the appearance of glass.

The Weight Test

Another way to distinguish between glass and plastic lenses is by conducting a weight test. Place your Coach sunglasses on your palm and compare the weight to what you would expect from glass or plastic. Glass lenses are generally heavier than plastic lenses due to the denser nature of the material. If your sunglasses feel noticeably heavier, there's a good chance they have glass lenses. Conversely, if they feel lightweight, it's more likely that the lenses are made of plastic.

The Tap Test

A simple yet effective method to determine the lens material is by performing a tap test. Gently tap the lenses of your Coach sunglasses with your fingernail or a small object and listen closely to the sound produced. Glass lenses tend to produce a higher-pitched, crisp sound, similar to tapping on a wine glass. Plastic lenses, on the other hand, produce a duller, lower-pitched sound. Remember to tap both lenses and compare the sounds to ensure accuracy.

The Temperature Test

The temperature test can provide valuable insights into the lens material of your Coach sunglasses. Start by holding your sunglasses in your hand and allow them to reach your body temperature. Next, place the sunglasses on a cold surface, such as a marble countertop or a metal object. Observe how the lenses react to the change in temperature. Glass lenses tend to fog up more slowly and take longer to reach the ambient temperature. Plastic lenses, on the other hand, fog up quickly and adjust to the temperature almost instantly.

The Polarization Test

Polarized lenses are a popular feature in sunglasses, including Coach models. While polarization doesn't directly determine the lens material, it can provide a clue. Hold your Coach sunglasses in front of a computer screen or a television and rotate them at different angles. If the screen appears to darken or completely black out at certain angles, it indicates that your sunglasses have polarized lenses. This test can help you confirm if your Coach sunglasses have glass or plastic lenses, as certain lens materials are more commonly polarized than others.

The Flexibility Test

Flexibility can be an indicator of the lens material in Coach sunglasses. Hold the frame of your sunglasses firmly with one hand and gently bend one of the temples (arms) back and forth. Glass lenses are typically found in sunglasses with sturdier frames, and thus, they offer less flexibility. If the lens material is glass, you may feel limited flexibility and resistance to bending. Conversely, plastic lenses are often found in sunglasses with more flexible frames, allowing the temples to bend more easily.

The Scratch Test

While we don't recommend intentionally scratching your Coach sunglasses, accidental scratches can sometimes happen. If you notice a scratch on the lenses, inspect it closely. Glass lenses are highly scratch-resistant, and it's unlikely that a scratch would be visible unless it's deep. On the other hand, plastic lenses are more susceptible to scratches and may show visible marks even with minor contact. If you find scratches that are easily visible, it's more likely that your Coach sunglasses have plastic lenses.

The Lens Labeling

Coach sunglasses often come with a small label or etching on the lens itself. Look for any markings or labels that indicate the lens material. It may say "glass" or "plastic" directly on the lens or in the corner. However, keep in mind that not all Coach sunglasses have this labeling, so it's not a foolproof method. If you're unable to find any labeling, don't worry; there are still other methods to help you determine the lens material.

The Professional Opinion

If you're still unsure about the lens material of your Coach sunglasses, it's always a good idea to seek a professional opinion. Visit an authorized Coach retailer or an optician who can examine your sunglasses and provide accurate information. They have the expertise and tools to determine the lens material with certainty. Additionally, they can offer valuable insights into the maintenance and care of your sunglasses, ensuring their longevity.


Determining whether your Coach sunglasses have glass or plastic lenses can be an intriguing quest. By employing visual inspection, weight, tap, temperature, polarization, flexibility, scratch, and lens labeling tests, you can gain a better understanding of the lens material. Remember, if you're still uncertain, consulting a professional is always a wise choice. With this newfound knowledge, you can confidently wear your Coach sunglasses, knowing exactly what they're made of and making a style statement with every step you take.