The frame holds
everything together.
Bio-resin TR90, Snap-Lock hinges, and no-slip grip — built for all-day wear in demanding conditions without adjustments, without failure.
Not petroleum.
Bio-resin TR90.
Bio-resin TR90 is the frame material on the Phoenix and Sedona. Over half of the material is derived from castor plant — not oil. That changes what the frame is made of and how it performs under real conditions.
BIO G850HI.
Bio-based and safety rated.
The Flatiron uses BIO G850HI — a bio-based frame material with similar flexibility and durability properties to TR90, built to meet the structural demands of ANSI Z87.1+ safety certification.
Most safety eyewear frames are standard petroleum-based materials. BIO G850HI is bio-based and ANSI rated — the frame and Lucid S+ lens are tested together as a complete system. Both have to hold under impact for the certification to apply.
The result is a safety frame that carries the same bio-based material commitment as the Phoenix and Sedona — without compromising on the impact protection standard required for job site use.
Every frame. Every hinge.
Built to hold.
The hinge is where
most frames fail.
Standard spring hinges rely on a small metal spring mechanism that fatigues over time — the more the frame is opened and closed, the more the spring weakens. Eventually the hinge loosens, the temple wobbles, and the fit degrades.
Snap-Lock is a built-in hinge reinforced with a screw. No spring to fatigue. No mechanism to wear out. The hinge is structurally part of the frame, not an insert added after the fact. The screw is replaceable — field serviceable without sending the frame back.
Every DSRT frame — Phoenix, Sedona, and Flatiron — uses the same Snap-Lock system.
32 grams.
All day.
Every DSRT frame weighs 32 grams. Light enough to forget you're wearing them. Stable enough to stay put through a full shift or a long training session without adjusting.
Stays put.
No adjustment needed.
Adjustable nose pads shift, loosen, and break. DSRT frames use integrated rubberized nose pads — built into the frame, not added on. The contact is consistent from day one to year three.
Built from a plant.
Built to last.
Bio-resin TR90 isn't a marketing claim — it's a material specification. Over half of it comes from castor plant, not petroleum. That means less oil consumption and lower CO2 per frame produced.
Manufacturing waste — the injection tails and sprues from frame production — is physically re-ground and fed back into the production process. Not landfilled. Not discarded.
Everything you need
to know about DSRT frames.
TR90 is a thermoplastic polyamide — a flexible, lightweight engineering plastic widely used in performance eyewear for its combination of low weight, high flexibility, and chemical resistance. Standard TR90 is petroleum-derived.
Bio-resin TR90 uses castor plant oil as a bio-based feedstock for over 50% of the material composition. The performance properties — flexibility, heat resistance, chemical resistance, and impact strength — are identical to standard TR90. The sourcing is fundamentally different. Used in the Phoenix and Sedona.
BIO G850HI is a bio-based frame material with similar flexibility and durability properties to TR90. It is used in the Flatiron because its material properties support the structural demands of ANSI Z87.1+ safety certification.
The Flatiron frame and Lucid S+ lens are tested together as a complete system under ANSI Z87.1+ requirements. The frame material must hold the lens in place under both high-velocity and high-mass impact. BIO G850HI meets that standard while maintaining the bio-based material commitment across the DSRT lineup. Used in the Flatiron.
The Phoenix and Sedona are built for outdoor performance and everyday wear — bio-resin TR90 provides the right balance of weight, flexibility, and heat resistance for those use cases.
The Flatiron is built to meet ANSI Z87.1+ safety certification for job site and industrial use. That certification requires the frame material to pass specific structural impact tests alongside the lens. BIO G850HI provides the material properties required to pass that certification as a system. Both materials are bio-based — the choice is driven by the performance demand of each frame, not by cost.
A rigid frame that takes an impact — a dropped pair, a fall, a collision — absorbs that impact as a stress fracture. A flexible frame distributes and dissipates the force, then returns to shape. The result is a frame that survives real-world contact without cracking at the hinge or temple.
Bio-resin TR90 and BIO G850HI both have elongation at break values over 50% — meaning the material stretches significantly before it reaches its breaking point. That range of flex is what makes the frame durable in actual use, not just in controlled testing.
Fit comes from contact point design — where and how the frame touches the face. DSRT frames use integrated rubberized nose pads and a no-slip grip system. There are no adjustable components that can shift out of position, loosen over time, or break off.
The ~140mm frame width is designed for medium to large face widths — wide enough for a secure lateral hold without applying pressure on the temples. The Snap-Lock hinge maintains consistent temple tension without a spring mechanism that fatigues. The result is a frame that fits the same on day one as it does after a year of daily use.
Three confirmed practices reduce the environmental footprint of DSRT frames. First, over 50% of the bio-resin TR90 frame material is sourced from castor plant — reducing petroleum consumption per frame compared to standard TR90 or conventional nylon. Castor plant cultivation reduces CO2 and does not require irrigation.
Second, manufacturing waste from frame production — the injection tails and sprues left over from the molding process — is physically re-ground and fed back into the production line. This is a confirmed circular manufacturing practice.
Third, the Snap-Lock hinge with replaceable screws means the frame can be serviced rather than replaced when the hinge is the only point of failure. A frame that lasts longer is the single most impactful sustainability outcome in eyewear.
Next: Testing + Standards.
How DSRT products are tested — ANSI Z87.1+ impact certification, optical clarity standards, and the field performance validation behind every frame and lens we build.
