What is TR90 in sunglasses?

Design may vary, color changes, and shape marks the style, but the frame material determines a large part of the wearing experience.

In recent years, the technical term TR90 has begun to appear consistently in product sheets and specialized descriptions.

Behind this material is a clear evolution in the way glasses designed for daily use, movement, and durability are manufactured.

Understanding what the use of TR90 means in glasses allows for understanding why this material has become a reference within the optical sector and functional fashion.

What is TR90 applied to glasses

TR90 is a type of advanced thermoplastic developed from a combination of high-resistance polymers.

Its main characteristic is the ability to adapt to shape without losing its original structure, which is why it is used in the manufacture of frames for different types of sunglasses.

This material stands out for its lightness, flexibility, and resistance to impacts and deformations.

As it is not a conventional plastic, its composition offers a wide creative range to obtain comfortable, durable frames prepared for intensive use.

Why TR90 is used in eyeglass frames

Real lightness for daily use

Due to the lightness of this material, frames made with TR90 reduce pressure on the nose and ears, which is especially relevant during prolonged use.

Controlled flexibility

TR90 has elastic memory, which means it can bend or deform temporarily and return to its original state without breaking or losing its fit.

High impact resistance

TR90 frames withstand shocks, twists, and adjustments better than any other material, also increasing their lifespan.

Differences between TR90 and other common materials

TR90 vs. Acetate

Acetate is a material widely used in glasses for its aesthetic finish and variety of colors; however, it is usually heavier and less flexible than TR90.

TR90 vs. conventional plastics

Compared to standard plastics, TR90 offers much higher durability, without becoming brittle over time or losing properties with moderate temperature changes.

TR90 vs. metal

Metal frames stand out for their rigidity and aesthetics, but they are often heavier and less tolerant of impacts than those made of TR90, a more flexible and lighter alternative.

Key advantages of glasses made of TR90

Reduced weight for greater comfort
Flexibility with shape recovery
High resistance to shocks and twists
Good performance against moisture and sweat
Stable fit for longer

These advantages explain why TR90 glasses are used in urban models as well as in sports or sun glasses.

TR90 and comfort as a determining factor

TR90 allows for designing frames with a more uniform fit, avoiding specific pressure points.

Furthermore, its soft touch and adaptability make the glasses integrate better into daily use, even for several hours at a time.

Comfort is especially relevant for active people who use glasses continuously.

TR90 performance in heat and cold

TR90 maintains its properties across a wide range of temperatures, without deforming or becoming fragile with temperature changes.

This thermal stability is a clear advantage over other materials that may lose rigidity or flexibility depending on the environment.

Maintenance and durability of TR90

Glasses made of TR90 do not require special care; regular cleaning and normal use are enough to keep the frame in good condition.

The material does not rust, does not crack easily, and retains its appearance for a long time, even with intensive use.

Why TR90 has become a standard

The rise of TR90 in the optical sector responds to the need to offer comfortable, resistant frames adapted to today's pace of life.

TR90 glasses represent a technical evolution that prioritizes the user experience without sacrificing design or functionality.

Its combination of lightness, flexibility, and durability explains why this material has established itself as a reference in both sunglasses and prescription glasses.

Knowing the material is the first step to understanding why certain frames offer a different feeling from the first use.

At D.Franklin, all models are manufactured in TR90, committing to a design where comfort and aesthetics combine perfectly to keep up with the modern pace of life.

Combine sunglasses and a cap

Combining sunglasses and a cap seems like a simple decision, but the result can either elevate a look or completely break its coherence. The key to finding balance lies in how they integrate with each other and with the rest of the outfit. In recent years, this combination has become part of urban style, streetwear, and everyday looks where image carries as much weight as comfort. Understanding the basic rules for achieving the perfect balance allows the ensemble to work naturally, without appearing forced. At D.Franklin, we explain the keys to combining sunglasses and a cap with discernment, considering shapes, colors, proportions, and context. The role of sunglasses and the cap within the look Both accessories fulfill a clear function in personal care, but they also have significant visual weight. Sunglasses act directly on the face, while the cap defines the upper part of the silhouette. When combined, neither element should compete for prominence, nor convey opposing aesthetic messages. Coherence and balance between both accessories are what make the difference in the final result and complete the look. How to combine sunglasses and a cap according to style Urban and casual style In urban looks, the key is simplicity, and clean lines in the cap's design are a definition of style. In this approach, sunglasses with balanced frames work better than excessively flashy designs. Neutral colors, recognizable shapes, and matte materials help integrate the set into daily life effortlessly. Well-defined sporty style When the look has a sporty base, both the cap and the sunglasses must share that language. Technical or sports-inspired caps fit better with wrap-around sunglasses or aerodynamic lines. The important thing here is to avoid mixing a sporty style cap with elegant aesthetic sunglasses, as the contrast breaks the coherence of the ensemble. Minimalist style Minimalism always bets on fewer elements, but these must be better selected, combining shape and color rather than visual impact. Plain caps, without excessive logos, combine with soberly designed sunglasses to create a clean and modern result. The importance of shapes when combining Proportion between cap and glasses The key is to prevent one accessory from eclipsing the other, helping to maintain constant visual harmony in the upper area. Voluminous caps combine better with medium or large frame sunglasses. Conversely, a low-profile cap works better with more discreet glasses. Face shape and set selection Angular faces benefit from more rounded sunglasses and caps with soft lines. Rounder faces are usually balanced with straight-lined glasses and structured caps. Colors to get it right without overloading the look Neutral tones as a safe base Black, white, gray, beige, or navy blue are colors that make combining sunglasses and a cap easy and error-free, acting as a base that offers greater freedom for the rest of the outfit. Controlled contrast Contrast only works when it is well-measured. A light-colored cap with dark glasses, or vice versa, provides dynamism without breaking the general aesthetic. As a general rule, it is recommended that only one of the two accessories carries the main color. Avoid color saturation Using very bright colors on both accessories at the same time usually generates visual noise. If the glasses stand out for their color or design, the cap should be more discreet, and vice versa. Materials and finishes that work best together Materials also communicate and, in some contexts, are an important part of the style perceived as part of personal attitude. Cotton, canvas, or technical fabric caps combine better with acetate sunglasses or matte finishes. While excessive shine on both elements tends to clutter the ensemble, in urban contexts, matte and semi-matte finishes provide a more modern feel. Common mistakes when combining sunglasses and a cap Mixing opposite styles without a clear aesthetic intention Using both accessories with excessive logos or details Ignoring the proportion between face, cap, and frame Opting for overly saturated colors on both elements Identifying these errors helps to understand why some combinations do not work, even when each accessory is correct on its own. However, the context is decisive when making decisions regarding accessory combinations. Combining sunglasses and a cap for an outdoor plan, an urban environment, or a daily commute requires adjusting the formality level of the ensemble to avoid visual mismatches. Coherence as the base of any combination Combining sunglasses and a cap well does not depend on following specific trends, but on understanding how both accessories dialogue with each other. Shape, color, proportion, and context are the variables that define the final result. When these keys are applied with discernment, the combination stops being a functional resource and becomes a natural extension of personal style. At D.Franklin, you will find the components and accessories needed to achieve the perfect everyday look regardless of the environment.

What is a polarized pair of sunglasses?

Polarized sunglasses are not a trend or a recent marketing gimmick; they respond to the need to avoid reflections and glare. Although at first glance they may look the same as other sunglasses, when you use them outdoors the visual experience changes noticeably. Same shape, same lens color, and an apparently similar design, but polarization technology is neither accidental nor subjective. Understanding how polarized sunglasses work makes it possible to appreciate why they are used in certain environments and activities. Understanding what polarized sunglasses are means knowing how light behaves, how it affects the human eye, and what this type of lens provides compared to a conventional sun lens. What polarized sunglasses are Polarized sunglasses are those that incorporate lenses with a special filter designed to block reflected light from horizontal surfaces. This type of light is the main cause of glare that occurs in environments such as roads, water, snow, or sand. Polarization selectively filters the light that reaches the eye, allowing a sharper perception, with higher contrast and less visual fatigue. Unlike a standard sunglass lens, which reduces the total amount of light, the polarized lens acts on the direction of that light. How polarization works in a lens Reflected light and glare When sunlight hits a flat surface, such as wet asphalt or the sea, it is reflected horizontally. That intense reflection causes glare, loss of contrast, and an uncomfortable visual sensation. This phenomenon does not depend on the intensity of the sun, but on how light reflects off certain surfaces. The polarizing filter Polarized lenses incorporate a chemical filter that acts like a microscopic grid. This filter blocks horizontally reflected light and allows vertical light to pass through, which is what provides useful visual information. The result is a clearer image, with more defined colors and without annoying reflections. Differences between polarized sunglasses and conventional sunglasses True glare reduction The main difference between polarized sunglasses and conventional ones lies in their ability to eliminate reflections. Conventional sunglasses darken, but they do not eliminate glare, whereas polarization acts directly on the cause of the problem. Improved contrast and sharpness Polarized sunglasses make it possible to distinguish details better, especially in very bright environments. Colors are perceived as more defined and transitions between shade and light are smoother, which is especially relevant for outdoor activities. Less visual fatigue By reducing reflections and the eye’s adaptation effort, polarized lenses reduce visual fatigue during prolonged exposure to the sun. What situations polarized sunglasses are designed for Driving On the road, polarized sunglasses improve visibility and provide a more stable perception of the surroundings, avoiding reflections from the asphalt, the dashboard, or other vehicles. Water activities On the water, polarization allows you to see through the surface more clearly, reducing sparkle and improving the perception of depth and movement. Use in high-brightness environments Snow, sand, or light-colored surfaces generate a large amount of reflected light. Polarized sunglasses help maintain comfortable, controlled vision in these scenarios. Real advantages of polarized sunglasses Effective elimination of reflections Greater visual clarity Improved contrast Reduced eye fatigue More stable outdoor vision These advantages do not depend on lens color or frame design, but exclusively on the presence of the polarizing filter. Possible limitations of polarized sunglasses Understanding what polarized sunglasses are also means knowing their limits, for example, on some digital screens they can make viewing difficult from certain angles. This effect is due to the interaction between the lens’s polarizing filter and the screen’s filter, and it is not a product defect. How to identify polarized sunglasses There are simple methods to check whether a lens is truly polarized. One of the most common is to look at a digital screen and slightly rotate the glasses; if the image darkens or changes noticeably, the lens is polarized. This behavior confirms the presence of the filter and its ability to block certain directions of light. Polarization and UV protection are not the same A key point is to distinguish polarization from ultraviolet protection, as both features serve different, complementary functions. Polarized sunglasses may not protect against UV rays if they do not include the appropriate treatment, and sunglasses with UV protection may not be polarized. Understand the usefulness before choosing Knowing what polarized sunglasses are helps you understand why this type of lens is used in specific contexts and what it offers compared to a conventional sun lens. It is a technical solution designed to optimize vision in high-brightness conditions. Polarization responds to the need to see better when light reflects, avoiding discomfort and improving perception of the surroundings. At D.Franklin you’ll find polarized sunglasses in collections that, in addition to caring for your vision, offer an aesthetic designed to elevate your look.