FIANDRE – Single-Lens Multilayer Mirrored Prescription Sports Glasses for Running, Cycling, Trekking & All Outdoor Sports

FIANDRE is the newest Demon prescription sports model, designed for athletes who live outdoors and demand the most: true protection, high performance, and optical correction in one solution. Whether you’re pushing on the pedals, running on asphalt, or tackling a mountain trail, FIANDRE delivers a stable fit and sharper, more precise vision so you can focus on pace, line choice, and your goal.

Its “shield” single-lens design features an aggressive profile, wide panoramic view, and wraparound coverage. This isn’t just about style: one large lens reduces visual interruptions and boosts protection against the elements wind, dust, insects, and debris improving comfort and safety, especially at higher speeds or on technical terrain.

Multilayer Mirrored Single Lens: more contrast, more control, more comfort

FIANDRE’s standout feature is its Multilayer Mirrored single lens, engineered for “smarter” vision in sport conditions. The multi-layer treatment enhances contrast perception, helping you spot details sooner and read the environment more clearly, including:

• surface changes (asphalt / gravel / dirt)
• shadows and trail relief
• transitions between direct light and partial shade
• lateral obstacles and small moving debris

The lens also offers glare management similar to what many athletes appreciate in polarized lenses, while avoiding the common screen-visibility issues that can occur with polarization. That means your bike computer, smartwatch, and other displays remain easy to read, even in strong sunlight.

The result is a view that feels cleaner, sharper, and faster to interpret ideal when quick decisions matter: choosing a line in MTB, setting a downhill trajectory, or adjusting foot placement while running.

Wide RX insert support: prescription vision without sacrificing your field of view

FIANDRE isn’t just “sports glasses with a clip” it’s designed to integrate prescription correction in a functional way. The wide shield lens and wraparound structure provide a generous field of view, essential for awareness in dynamic sports.

The internal insert keeps your prescription lenses stable and centered, so your correction follows your movement and sport posture reducing distractions and visual fatigue.

Prescription Technology – Integrated RX Clip

FIANDRE includes an integrated RX clip made from TR90 (the same material as the frame), ensuring consistent strength, low weight, and durability. It’s built to stay reliable through vibrations, pace changes, and intense movement.

Supported prescription range (RX lenses):

• Max sphere: ± 6.00
• Cylinder (astigmatism): ± 3.00

RX clip lens dimensions:

• Lens height: 40 mm
• Lens length: 45 mm
• Base: 6

Ideal for which sports?

Road Cycling & Mountain Bike

MTB: on trails and in the woods, eye protection is safety. FIANDRE’s wide coverage shields against branches, leaves, dirt, dust, and insects. Wraparound protection also reduces stray side light, improving focus. Despite the shield shape, FIANDRE stays ultra-light: only 30 g, a real advantage on long rides and hot days.

The Multilayer Mirrored lens is ideal for bright conditions and extended use. On MTB—where light can change in seconds higher contrast helps you read the terrain earlier and spot small obstacles sooner.

Road cycling: FIANDRE combines protection from wind, dust, micro-debris, insects, and intense light with stable comfort. The highly reflective DMIRROR lens is especially recommended in summer or very bright days, helping reduce glare and maintain visual stability for hours.

A secure fit comes from a flexible frame, hypoallergenic rubber contact points, and a non-slip nose pad: fewer adjustments, fewer distractions, more performance.

Cyclocross, touring & more: perfect for any two-wheel discipline where you need protection, stability, and a wide field of view an all-in-one prescription solution you can trust in different environments.

Running & Trail Running

Trail running: off-road vision is part of technique. FIANDRE protects from sudden obstacles like branches, leaves, mud, and insects, while boosted contrast helps you read the path better. The low weight (30 g) reduces fatigue over long sessions, and the grip components help prevent slipping from sweat and vibration.

The DMIRROR lens isn’t just about looks: its reflection and multilayer structure can improve perception of terrain changes—supporting safer footing and quicker reactions.

Road running: on asphalt and in the city, FIANDRE shields your eyes from dust, debris, wind, and insects while staying comfortable for prolonged use. The flexible frame and hypoallergenic materials make it a solid choice even for many hours of wear.

Other Outdoor Sports & Uses

• Hiking / Trekking: wraparound coverage limits distracting light from above and the sides; DMIRROR helps in very bright conditions.
• Ski / Cross-country: a lightweight alternative to goggles when conditions allow, offering wind protection and stable hold.
• Beach volleyball: great stability and protection from sand; wrap design helps keep particles away from the eyes.
• Hang-gliding / Paragliding: comfort and protection in intense brightness; high contrast helps read the environment clearly.
• Tennis & Golf: stability, wide view, and contrast for tracking the ball and reading ground detail.
• Water sports: helps protect from splashes that can distract and impact performance.

Technical features & materials: safety, lightness, durability

The MIRROR / DMIRROR multilayer lens is made from impact-resistant polycarbonate. Along with UV protection, polycarbonate improves safety in case of accidental impacts by absorbing shock and reducing the risk of dangerous fragmentation.

The frame is TR90 (a technical blend of carbon fiber and nylon), chosen to deliver a lightweight yet robust structure that’s flexible, durable, and sport-ready:

• low weight (30 g)
• adaptable fit across different face shapes
• high resistance to impacts and stress
• long-lasting durability vs traditional materials

Nose pads and rubber inserts are made from soft, hypoallergenic Megol, improving stability and comfort while limiting slippage from sweat, vibration, and sudden movements.

Why choose FIANDRE

FIANDRE is the ideal choice if you want a single-lens prescription sports shield with a Multilayer Mirrored lens, suitable for multiple disciplines, with real performance benefits:

• wraparound protection + wide field of view
• enhanced contrast for sharper, faster vision
• screen-friendly visibility for sports devices
• TR90 internal RX clip
• ultra-light and stable (30 g)
• technical materials that are durable and comfortable

FIANDRE is built for athletes who want real performance, hours of comfort, and bold style without giving up prescription correction.