Flatiron
Safety + performance

Built for work, training, outdoor use, and everyday wear. Explore DSRT performance sunglasses with polarized lenses, durable frame materials, all-day fit, and safety-rated options for demanding environments.
Find Your Frame
Every DSRT frame is built for performance, but each one has a different job. Compare the Flatiron, Phoenix, and Sedona to find the frame that fits how you work, train, and spend your time outside.
Safety + performance
Athletic + everyday performance
Ultra-light lifestyle + outdoor performance
Not sure where to start? Flatiron is built around safety and hard use, Phoenix is the athletic option, and Sedona delivers the most versatile everyday style.
Lens Technology
Lens material, polarization, UV protection, visible light transmission, and coatings all affect how sunglasses perform. DSRT uses two different lens platforms across the current lineup: premium nylon optics for The Phoenix and The Sedona, and impact-resistant polycarbonate for The Flatiron.
Nylon is a type of polyamide that combines lightweight construction with high optical clarity, making it well suited to performance sunglasses designed for long periods of wear. Lens material is only one part of the system: polarization, tint, coatings, frame geometry, and fit all influence how the finished eyewear performs.
The Phoenix and The Sedona use DSRT Lucid+ polarized nylon lenses.Polycarbonate is known for high impact resistance, making it especially useful when eyewear needs to provide more than sun protection alone. The Flatiron uses polycarbonate lenses as part of a complete safety-focused eyewear system that includes the frame, hinges, wrap geometry, coverage, and fit.
The Flatiron uses DSRT Lucid S+ polarized UV400 polycarbonate lenses as part of its ANSI Z87+ safety-rated design.Polarization helps reduce reflected glare from surfaces such as roads, vehicles, water, and other bright horizontal surfaces. That can improve visual comfort and reduce distracting glare during driving, training, work, hiking, and long days outdoors.
The Phoenix, The Sedona, and The Flatiron all use polarized lenses.UV protection and lens darkness describe different things. UV400 refers to protection from ultraviolet wavelengths up to 400 nanometers, covering UVA and UVB. Visible Light Transmission, or VLT, describes how much visible light passes through the lens. Lower VLT percentages create darker lenses suited to brighter conditions.
The Phoenix uses 12% VLT lenses. The Flatiron uses 12% and 14% VLT configurations depending on the lens. See each product page for the exact VLT of the specific Sedona lens and colorway.Every DSRT sunglass lens uses multiple surface treatments to help manage water, oils, normal wear, and optical performance. Hydrophobic, oleophobic, and anti-scratch coatings are used across the lineup, while anti-fog and backside anti-reflective treatments are applied according to each frame's geometry and intended use.
Every DSRT sunglass lens uses a hydrophobic coating designed to help water bead and move off the lens surface more easily.
An oleophobic coating helps resist oils, fingerprints, and smudges, making the lenses easier to keep clean during everyday use.
The Flatiron, The Phoenix, and The Sedona all use an anti-scratch coating to improve resistance to normal wear. No sunglass lens is scratch-proof, so proper cleaning and storage still matter.
The Flatiron adds an anti-fog coating designed to help reduce fogging during demanding work, active use, temperature changes, and changing environmental conditions.
The Phoenix and The Sedona use an anti-reflective coating on the backside of the lens to help reduce distracting reflections reaching the inner surface of their flatter lens designs.
The Flatiron uses a deeper 8-base wrap. That curved geometry reduces the need for the backside anti-reflective treatment used on the flatter The Phoenix and The Sedona lenses.
Frame Design & Construction
A sunglass frame is more than its shape. Material, curvature, fit, weight, hinge design, and temple geometry all affect how the eyewear feels and performs. DSRT uses different frame designs across the lineup because hard use, training, and all-day wear place different demands on a pair of sunglasses.
Performance eyewear has to balance weight, flexibility, durability, and long-term comfort. Rather than using one construction across the lineup, each DSRT frame is built around its intended use.
Built from BIO G850HI high-impact polyamide for a durable, lightweight safety-performance frame designed for demanding use.
Uses lightweight Eco-Flex TR90 construction for an athletic frame designed around movement, a secure no-slip fit, and everyday wear.
Built as an ultra-light 22 g true-unisex frame with a clean, versatile profile designed for all-day comfort, travel, and outdoor use.
Frame curvature changes more than appearance. A deeper wrap can increase coverage around the face, while flatter geometries create a more traditional sunglass profile. Flatiron, Phoenix, and The Sedona are intentionally shaped differently because each frame is built for a different type of use.
Flatiron uses an 8-base curved wrap that sits closer around the face for increased coverage and a secure, safety-focused fit.
Phoenix uses a sport-oriented shape built to stay secure through movement without the deeper wrap geometry of the Flatiron.
The Sedona uses the cleanest lifestyle-oriented shape in the lineup, with true-unisex styling that transitions naturally from outdoor use to everyday wear.
Frame width, curvature, temple geometry, and overall weight all influence how sunglasses sit and stay on your face. Each DSRT frame is sized and shaped around a different balance of coverage, stability, and all-day comfort.
Built for larger head sizes with an 8-base wrap, helmet-friendly temples, Snap-Lock hinges, and an included retention strap for added security when needed.
Measures 140 mm across the frame with a secure no-slip fit designed for training, running, hiking, and everyday movement.
Measures 138 mm across the frame and weighs just 22 g, combining a secure no-slip fit with ultra-light comfort for long days of wear.
Flatiron delivers the most wrap and coverage for hard use, Phoenix balances athletic stability with everyday versatility, and The Sedona is the ultra-light option for true-unisex, all-day wear. Choose the frame that best matches your head size, preferred coverage, and how you plan to use it.
Why DSRT
DSRT is built around a simple idea: performance gear should work hard without looking like equipment you only wear for one activity. That means purposeful materials, clear product specifications, real-world use, and support after the sale.
DSRT is a Phoenix, Arizona brand built around long days in intense sun, heat, work, training, and outdoor environments. That context shapes how we think about eyewear from the beginning.
We believe customers should know what they are buying. Frame materials, lens materials, coatings, fit, protection, and other product specifications are explained instead of hidden behind generic performance language.
DSRT sunglasses are designed to perform in the environments they were built for while still looking like something you would choose to wear when the work or training is over.
Flatiron, Phoenix, and Sedona are not the same sunglass with a different shape. Each frame uses a different combination of geometry, fit, materials, lenses, and features based on its intended use.
Work, training, travel, driving, hiking, and everyday life are hard on gear. DSRT products are designed around actual use rather than being treated like something that needs to stay protected in a case.
A pair of sunglasses should not become your problem the moment the order arrives. DSRT backs its products with returns, warranty support, and the Wreck & Replace program.
Buying sunglasses online always involves some uncertainty. DSRT's return, warranty, and replacement programs are designed to reduce that risk and keep the product useful long after the first day.
The goal is straightforward: build sunglasses with the materials, protection, optics, and fit needed for hard use, without forcing you to change eyewear every time the environment changes.
Built for Real Days
DSRT sunglasses are designed around real days, not single activities. Work can turn into training. Training can turn into dinner. A weekend outside can include driving, hiking, and hours in the sun. Each frame has a primary strength, but the lineup is built around crossover use.
Protection and coverage for demanding work environments.
When the workday requires protective eyewear, Flatiron is the purpose-built option in the DSRT lineup. Its safety-focused design combines an 8-base wrap, durable construction, anti-fog performance, and features intended for hard use without the traditional PPE look.
Secure performance eyewear for active days outside.
Phoenix is the athletic option in the DSRT lineup, built around lightweight construction, polarized nylon optics, and a secure no-slip fit for movement, sweat, and long outdoor sessions. Flatiron can also cross into active use when you want more wrap and coverage.
Premium performance in a clean, true-unisex frame.
The Sedona is the lightest and most lifestyle-oriented frame in the DSRT lineup. At just 22 g, its true-unisex shape, secure no-slip fit, polarized nylon optics, and 138 mm Medium–Large fit make it an easy choice for travel, driving, hiking, and long days outside.
Flatiron is built for protection and hard use, Phoenix is the athletic crossover frame, and The Sedona delivers ultra-light comfort with true-unisex everyday styling. Different strengths, same idea: eyewear built to move between the places you actually spend your day.
Sunglasses FAQ
From lens materials and coatings to fit, safety ratings, and returns, here are the most common questions about DSRT sunglasses.
Yes. Current DSRT sunglasses use polarized lenses to reduce reflected glare from roads, vehicles, water, and other bright surfaces. Phoenix and The Sedona use polarized nylon lenses, while Flatiron uses polarized polycarbonate lenses as part of its safety-focused design.
The Flatiron is DSRT's safety-focused sunglass frame and is rated ANSI Z87+. It combines safety-oriented impact protection with an 8-base wrap, polarized polycarbonate lenses, anti-fog coating, and a design intended to transition beyond the jobsite.
ANSI Z87+ is a high-impact safety designation used for protective eyewear. The "+" indicates that the eyewear meets the applicable high-impact requirements rather than only the basic-impact level.
For safety-critical applications, always use the exact product specifications and required workplace protection rules for your task.
UV400 means the lens is designed to block ultraviolet wavelengths up to 400 nanometers, covering both UVA and UVB ranges. UV protection is different from lens darkness: a darker-looking lens does not automatically mean stronger UV protection.
VLT stands for Visible Light Transmission. It measures the percentage of visible light that passes through a lens. Lower VLT percentages generally create darker lenses for brighter conditions, while higher percentages allow more visible light through.
Exact VLT varies by DSRT model and lens colorway.
Both materials can be used in performance eyewear, but they serve different design priorities. Phoenix and The Sedona use polarized nylon lenses for lightweight optical performance and high visual clarity. Flatiron uses polarized polycarbonate lenses as part of its impact-resistant, safety-focused design.
Flatiron, Phoenix, and The Sedona lenses all use hydrophobic, oleophobic, and anti-scratch coatings.
Flatiron additionally uses an anti-fog coating. Phoenix and The Sedona use a backside anti-reflective coating because of their flatter lens geometry, while Flatiron's deeper 8-base curve reduces the need for that backside treatment.
Flatiron is the largest fit in the lineup and is designed for Large–XL head sizes. It also has the deepest wrap and provides the most face coverage.
Phoenix and The Sedona are both Medium–Large fits. Phoenix measures 140 mm across the frame, while The Sedona measures 138 mm.
Flatiron is the safety and hard-use frame, with a Large–XL fit, ANSI Z87+ protection, polarized polycarbonate lenses, anti-fog coating, and an 8-base wrap for increased coverage.
Phoenix is the athletic performance frame, with a Medium–Large 140 mm fit, lightweight Eco-Flex TR90 construction, polarized nylon lenses, and a secure no-slip fit built for training and movement.
The Sedona is the ultra-light lifestyle-performance frame, with a Medium–Large 138 mm fit, just 22 g of weight, true-unisex styling, polarized nylon lenses, and a secure no-slip fit for all-day wear.
Yes. Phoenix is the primary athletic-performance frame in the lineup, with a secure no-slip fit designed for movement, sweat, running, training, hiking, and active outdoor use. Flatiron also works well for active use when you prefer deeper wrap coverage or need its safety-focused features.
The Sedona is DSRT's ultra-light everyday frame. At just 22 g, its true-unisex shape, polarized nylon lenses, and secure no-slip fit make it ideal for everyday wear, driving, travel, hiking, and long days outside. Phoenix is another strong everyday option if you prefer a sportier, more athletic look.
DSRT offers 30-day free returns so you can try the sunglasses and make sure the fit, style, and frame are right for you.
DSRT sunglasses are backed by a Lifetime Warranty for qualifying product issues. Warranty coverage is separate from normal wear, accidental damage, or situations covered by the Wreck & Replace program.
Wreck & Replace is DSRT's replacement program for situations where life wins and your sunglasses are damaged beyond normal warranty coverage. Qualifying replacement sunglasses are available at 75% off.
Individual DSRT product pages contain the exact specifications for each frame, lens, colorway, fit, and available feature.
Eyewear Guides
Explore the materials, safety standards, lens technology, fit, and real-world conditions behind performance eyewear.
See how DSRT thinks about materials, product construction, lens technology, testing, and performance across the eyewear lineup.
Explore Technology → Testing & StandardsLearn how DSRT approaches protective-eyewear testing, safety standards, and the claims used on products such as the Flatiron.
Explore Testing & Standards → Lens MaterialsCompare two performance-lens materials and learn how impact resistance, weight, optics, and intended use affect lens selection.
Read the Guide → PolarizationUnderstand what polarization actually does, when glare reduction matters, and when a polarized lens may or may not be the right choice.
Read the Buyer's Guide → Safety EyewearLearn the difference between ordinary sunglasses and eyewear designed around protective standards, impact performance, and jobsite use.
Read the Guide → Fit & PerformanceLearn how frame fit, movement, sweat, temple design, and frame geometry affect how securely sunglasses stay in place.
Read the Guide → Arizona SunSee what matters when choosing sunglasses for intense sun, high heat, reflected glare, and long days outside in Arizona.
Read the Arizona Guide →DSRT publishes practical eyewear guides to explain the materials, specifications, standards, and design decisions behind the products— not just label them “premium.”