Flux
UV400
100% blocking
UVA + UVB rays
CE Certified
European standard
EN ISO 12312-1
30-day returns
Free exchanges
across the EU
- Free shipping
- 6-month warranty
- Secure checkout
Frame
- Material
- TR90 (engineering thermoplastic polymer)
- Finish
- Matte/semi-gloss (white and purple/coral depending on colour)
- Design
- Rimless (no lower rim) — upper half-frame
- Nose bridge adjustment
- Adjustable high-elasticity silicone
- Temples
- TR90 rubber-coated tips (anti-slip)
- Anti-slip treatment
- Temple tips (textured coating)
- Approximate weight
- 28g (frame without lenses)
Lens
- Material
- Polycarbonate (PC) — Impact resistant
- Technology
- Prism mirror — High contrast, maximum saturation
- UV protection
- UV400 (blocks 100% UVA/UVB up to 400nm)
- Impact resistance
- 50% above standard PC (test: 127cm drop, 16g weight)
- Approximate VLT
- Nebula 25% / Coral 35% / Crystal 70% / Azure 45%
- Dimensions (L×W)
- 142mm (L) × 52mm (W)
- Anti-fog
- No (base Prism version)
- Interchangeable
- No (integrated rimless lens)
Comfort & Fit
- Recommended face shape
- Oval, round, medium to small face (feminine design)
- Head circumference
- No adjustment (fixed frame) — standard S/M
- Ventilation
- Side openings in rimless frame
- Prescription lens support
- No (rimless without rim for clip-on)
- Temple pressure level
- Medium (comfort for long distances without pressure)
Use Scenarios
- Ideal light intensity
- Medium to strong sun (Prism optimised for sunny days)
- Terrain type
- Smooth tarmac, light technical trail, urban parks
- Weather
- Dry, sunny, spring/summer conditions
- Use pace
- Zone 2–3 training, steady aerobic, long run, medium-distance competition
- Recommended continuous duration
- 45min–3h comfortably without eye fatigue
- Ideal time of day
- Dawn (Coral), midday (Nebula, Azure), golden hour (all colours)
Certifications
- CE
- Applied
- UV400
- 100% blocking up to 400nm
- EN ISO 12312-1
- To be validated before EU go-live
- ANSI Z87.1 (impact)
- Applies (PC +50% impact)
Care & Warranty
- Cleaning: Use microfibre cloth with lukewarm running water. Avoid alcohol, acetone or abrasive products.
- Storage: Store in hard case in a cool, dry place. Never leave on car dashboard under direct sun.
- Mirror lenses: The coating may develop micro-scratches with intensive use in rough-particle environments; this is considered normal wear.
- Velaro Warranty: 12 months against manufacturing defects (moulding, coating integrity, temples).
- Coverage excludes: Scratches from impact, drops, exposure to solvents, natural cosmetic wear or product modifications.
- Hard case
- Yes
- Microfibre cloth
- Yes
- Fabric carry bag
- Yes
- Adjustable strap
- Yes
- Physical CE certificate
- Yes
Total clarity, zero glare under the sun.
The Flux is the answer for those who run when the sun is at its worst. A rimless design optimised for wet tarmac, open water, and reflected light everywhere. The Prism mirrored lens saturates colour and eliminates glare in fractions of a second. Whether you're pushing under a steel bridge or crossing a reflective river, your vision stays razor-sharp. No blind moments.
Ultralight TR90 frame with adjustable silicone nose bridge and anti-slip rubber temples. Polycarbonate mirrored lens that absorbs 50% more impact than standard. Panoramic 142° field of view with zero distortion. For variable-light training from start to finish, see the Kapvoe Flux Spirit. Run under the harshest light with total visual confidence.
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28 g feminine rimless TR90 frame:
ultralight with adjustable silicone nose bridge and panoramic 142° field of view.
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Prism mirror lens with +50% impact resistance:
high contrast that eliminates reflections under strong light, more robust than standard PC.
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CE-certified full UV400 protection:
complete UVA and UVB blocking. Temples with anti-slip rubber for firm fit even during intense movement.
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Includes hard case, microfibre cloth, fabric bag and strap:
complete kit for long-distance women's running. 12-month warranty.