Outer shield
Coverage, wind management, sun, dust, and bugs.
How RX Insert Works
How a removable RX insert works in cycling glasses.
An RX insert is a small optical frame that sits behind the outer shield lens. The shield handles wind, sun, dust, and debris. The insert holds prescription lenses.
What is a prescription insert in cycling glasses?
A prescription insert is a compact lens carrier mounted behind the performance shield. It is different from fitover sunglasses because it does not sit over your everyday glasses. It is also different from direct prescription cycling eyewear because the prescription is not built into the outer shield itself.
That separation is why RX insert cycling glasses can be practical for early product validation: the outer lens and prescription carrier can be tested as separate systems.
The RX insert frame is not custom for every rider. The prescription lenses inside the insert are. This keeps the cycling frame consistent while allowing the optical part to be made for the rider’s prescription.
How RX insert cycling glasses work
RX insert
Single vision prescription lens carrier behind the shield.
Fit system
Nose pad, helmet compatibility, airflow, and insert stability.
Best use cases
- Road, gravel, commuting, and recreational riding.
- Riders who dislike contact lenses during windy or dry rides.
- Riders who want a less bulky alternative to fitover sunglasses.
- Single vision prescription wearers who want a removable prescription carrier.
Lens options to ask about
Supplier samples still need to confirm which lens options are practical for launch. Options under review include clear, smoke, polarized, photochromic, anti-fog coating, and UV400 outer lenses.
Claryde will not claim support for every lens option until exact models, samples, and supplier documentation are verified.
What we still need to validate
- RX insert stability during road and gravel vibration.
- Fogging behavior between the outer shield and the insert.
- Helmet strap and temple-arm fit.
- Nose comfort, eyelash clearance, and field of view.
- Supported SPH/CYL range for single vision launch candidates.
FAQ
What is a prescription insert in cycling glasses?
A prescription insert is a small optical carrier that sits behind the outer shield lens. The shield handles coverage while the insert carries single vision prescription lenses.
Do RX inserts fog up?
They can if airflow is poor or the gap between the outer lens and insert traps moisture. Claryde will validate fog behavior with supplier samples before final launch claims.
Does Claryde support progressive prescriptions?
No. Progressive, bifocal, and prism prescriptions are not supported at launch. Claryde starts with single vision.