A safety wrap, an athletic frame, and an ultra-light everyday frame should not be built the same way. DSRT uses different materials, geometry, fit profiles, and hardware across the lineup because each frame has a different job.
Purpose-built materials · No-slip fit · Performance geometry · Lifetime warranty
Purpose-Built Design
The frame affects more than how sunglasses look. Material, curvature, width, weight, temple geometry, and contact points all influence how eyewear feels, stays in place, and performs throughout the day. That is why DSRT does not build every sunglass around the same platform.
Safety + Hard Use
The Flatiron is built around protection and coverage. Its 8-base wrap sits closer to the face, its Large–XL fit provides more room for larger head sizes, and its safety-focused construction is designed for demanding work and active environments.
Athletic Performance
The Phoenix balances a secure athletic fit with an everyday profile. Its 140 mm Medium–Large frame is designed to stay put through sweat, movement, training, hiking, and long days outside without looking like dedicated sport eyewear.
Ultra-Light Everyday
Sedona is the lightest frame in the lineup at just 22 g. Its 138 mm Medium–Large fit, true-unisex shape, and secure no-slip design are built for all-day comfort, travel, hiking, driving, and everyday wear.
Frame Materials
Frame material affects weight, flexibility, shape retention, durability, and how eyewear responds to repeated use. DSRT uses two different material platforms because the demands of an athletic lifestyle frame are different from those of safety-focused eyewear.
Phoenix + Sedona
The Phoenix and Sedona use lightweight Eco-Flex TR90 designed to balance flexibility, shape retention, comfort, and durability.
The material platform incorporates bio-based feedstock to reduce reliance on conventional petroleum-based frame material while maintaining the performance characteristics expected from premium TR90 eyewear.
The Flatiron
The Flatiron uses BIO G850HI high-impact polyamide as part of its safety-focused construction. It was selected for a frame built around demanding use, deeper wrap coverage, and impact performance.
The material is only one part of the safety system. The Flatiron’s frame, lenses, hinges, coverage, and overall construction work together as a complete ANSI Z87+ rated eyewear system.
ANSI Z87+ applies to the complete Flatiron eyewear system, not to the frame material by itself.
Frame Geometry
Frame curvature affects more than appearance. It changes how closely sunglasses sit to the face, how much side coverage they provide, how secure they feel during movement, and how the lenses interact with light.
8-Base Wrap
The Flatiron uses a deeper 8-base curve that wraps closer around the face. The geometry increases side coverage, creates a more enclosed fit, and supports the frame’s safety-focused design.
Athletic Profile
The Phoenix uses a flatter athletic profile that provides secure coverage without the deeper wrap of The Flatiron. It is designed to stay stable during movement while still looking natural as an everyday sunglass.
Lifestyle Profile
Sedona uses the most lifestyle-oriented geometry in the lineup. Its flatter profile, true-unisex shape, and ultra-light construction are designed around comfort, versatility, and easy all-day wear.
The flatter lens designs used by Phoenix and Sedona allow DSRT to use a backside anti-reflective coating to reduce reflections reaching the eye. The Flatiron’s deeper 8-base wrap changes the angle of incoming light and does not require the same backside treatment.
Fit + Stability
A good frame should feel secure without creating pressure. Width, curvature, temple geometry, contact points, and overall weight all affect how sunglasses actually fit and how stable they feel through movement, heat, and long hours of wear.
The Flatiron is the largest-fitting frame in the DSRT lineup. Its deeper wrap creates a closer, more enclosed fit around the face, while helmet-friendly temples and the included retention strap add security for work, hard use, and high-movement environments.
The Phoenix is designed around a secure athletic fit that stays stable through sweat and movement without feeling overly tight. Its 140 mm Medium–Large frame provides more performance hold than a traditional lifestyle sunglass while remaining comfortable enough for everyday wear.
Sedona combines a secure no-slip fit with the lightest construction in the DSRT lineup. At just 22 g, the frame is designed to reduce pressure and remain comfortable through travel, hiking, driving, and long days of everyday wear.
Lighter is not automatically better. A frame still needs enough structure and grip to stay predictable when you move. Sedona prioritizes minimum weight and all-day comfort, The Phoenix balances lightweight construction with athletic stability, and The Flatiron prioritizes wrap, coverage, and safety-focused security.
Hardware + Contact Points
A frame can use premium material and still fail if the hinge loosens, the contact points shift, or the fit depends on excessive pressure. DSRT focuses on the small structural details that determine how a frame feels after repeated use.
Traditional spring hinges rely on a small internal mechanism that can loosen and fatigue over time. DSRT’s Snap-Lock design uses a built-in hinge reinforced with a replaceable screw instead of relying on a spring mechanism.
The goal is consistent temple tension, simpler construction, and hardware that can be serviced instead of making the entire frame disposable when one small component wears out.
Stability should come from fit and contact geometry, not from squeezing the sides of your head. DSRT frames are designed around secure contact points that help keep the sunglasses positioned through movement, sweat, heat, and long periods of wear.
The Phoenix and Sedona emphasize no-slip stability for active and everyday use. The Flatiron adds deeper wrap geometry and an included retention strap for situations where additional security matters.
A good frame should open, close, fit, and stay in place predictably day after day. Material matters, but long-term performance also depends on the hinge, contact points, temple geometry, and how those components work together as a system.
The Lineup
Each DSRT frame is built around a different use case. The right choice depends less on which frame has the most features and more on which construction best matches how you actually wear your sunglasses.
You need protective eyewear for work, hard use, larger head sizes, or environments where wrap coverage and security matter most.
Shop The Flatiron →You want sunglasses that stay secure through training, running, hiking, and movement but still look natural as your everyday pair.
Shop The Phoenix →You want the lightest DSRT frame with a clean everyday shape, secure fit, and comfort built for travel, driving, hiking, and long days of wear.
Shop Sedona →Compare lenses, fit, materials, coatings, use cases, and frame construction across The Flatiron, The Phoenix, and Sedona.
Compare SunglassesMaterial Responsibility
DSRT uses bio-based frame materials where they make sense for the performance requirements of the product. The goal is to reduce reliance on conventional petroleum-based material without compromising durability, fit, or function.
Bio-based material is used across the current DSRT sunglass lineup, including Eco-Flex TR90 in The Phoenix and Sedona and BIO G850HI high-impact polyamide in The Flatiron.
Replaceable hinge hardware can help extend the usable life of a frame by allowing a small wear component to be serviced instead of making the entire frame disposable.
DSRT sunglasses are backed by a Lifetime Warranty against qualifying manufacturing defects, while Wreck & Replace provides another path when accidental damage falls outside normal warranty coverage.
Material sourcing matters, but durability matters too. A frame that stays in use longer, can be serviced when possible, and is backed after the sale is a more meaningful approach than treating sustainability as a single material claim.
Frame Reference Guide
Frame material, curvature, width, weight, and fit all affect how sunglasses feel and perform. Here are the most useful differences to understand when comparing DSRT frames.
TR90 is a lightweight thermoplastic polyamide commonly used in performance eyewear because it combines flexibility, low weight, chemical resistance, and shape retention.
The Phoenix and Sedona use DSRT’s Eco-Flex bio-resin TR90 platform for a balance of durability, comfort, and flexibility.
BIO G850HI is the high-impact polyamide frame material used in The Flatiron. It was selected for a frame built around deeper wrap coverage, hard use, and safety-focused performance.
The material itself is only one part of the system. The Flatiron’s frame, lenses, hinges, coverage, and overall construction work together as the complete ANSI Z87+ rated eyewear system.
Base curve describes how much the lens and frame curve around the face. An 8-base frame has a deeper wrap than a flatter lifestyle sunglass.
The Flatiron uses an 8-base geometry to sit closer to the face, increase side coverage, and create a more enclosed performance fit.
A deeper wrap can provide more side coverage and a closer fit, which can be useful in work and active environments where protection and stability matter.
The Flatiron combines 8-base wrap geometry with its safety-focused frame and lens system for demanding applications.
The Flatiron is the largest-fitting DSRT sunglass and is designed for Large–XL head sizes.
The Phoenix and Sedona are both Medium–Large fits, with The Phoenix measuring 140 mm wide and Sedona measuring 138 mm wide.
Sedona is the lightest frame in the current DSRT sunglass lineup at 22 g.
Its lower weight, 138 mm Medium–Large fit, and true-unisex shape make it the most comfort-focused option for long periods of wear.
Both use Eco-Flex TR90 and polarized nylon lenses, but they are designed around different priorities.
The Phoenix has a sportier athletic fit and is designed around training, movement, sweat, and active outdoor use. Sedona is lighter at 22 g, more lifestyle-oriented, and uses a true-unisex shape designed for all-day versatility.
The Phoenix combines a 140 mm Medium–Large frame, lightweight TR90 construction, athletic geometry, and a secure no-slip fit.
That combination is designed to keep the frame stable through running, training, hiking, sweat, and repeated movement without making it look like dedicated race eyewear.
Frame width helps determine how sunglasses sit across the face. A frame that is too narrow can create pressure at the temples, while one that is too wide may feel loose or unstable.
Width is only part of fit, though. Curvature, temple shape, nose contact, and overall geometry also affect how secure the frame feels.
Each frame is built around a different performance priority.
The Phoenix and Sedona prioritize lightweight flexibility, comfort, and all-day wear, so they use Eco-Flex TR90. The Flatiron uses BIO G850HI high-impact polyamide as part of its safety-focused construction.
Yes. Frame curvature changes the angle at which light can reach both the front and backside of the lens.
Phoenix and Sedona use flatter lens geometries and include a backside anti-reflective treatment. The Flatiron’s deeper 8-base wrap uses a different optical geometry and does not use the same backside treatment.
Choose The Flatiron if protection, deeper wrap coverage, safety performance, or a larger fit are the priority.
Choose The Phoenix if you want the most athletic everyday frame for training, running, hiking, and movement.
Choose Sedona if you want the lightest frame, true-unisex styling, and maximum all-day versatility.
Material, geometry, lenses, coatings, hinges, and fit all affect the finished eyewear. No single specification tells the whole story, which is why each DSRT frame is designed around its intended use as a complete system.
Testing + Standards
A frame material by itself does not make eyewear safety rated. Protective performance depends on how the frame, lenses, hinges, coverage, and overall construction work together.
The Flatiron is designed and tested as a complete eyewear system. Its BIO G850HI frame material and Lucid S+ polycarbonate lenses are part of a broader safety-focused construction built around impact performance, secure coverage, and demanding use.
Explore Testing + StandardsFind Your Frame
The Flatiron is built around protection and coverage. The Phoenix is built around athletic stability. Sedona is built around ultra-light versatility. Start with the frame that matches how you actually spend your day.
