Diamond-Bio replacement lens collection from Sunglass Fix

DIAMOND-BIO

Lenses by Sunglass Fix

Superior optical quality with a reduced carbon footprint
The Sunglass Fix is dedicated to protecting our planet while delivering high-specification optics. This is why our premium Diamond-Bio lens range is made from professional-grade optical Polyamide, containing 44% bio-based materials sourced from renewable, eco-friendly origins.
Maximum scratch protection
Advanced anti-reflective coating
Sustainable Bio-Polyamide lenses
Lower carbon emission profile
Photochromatic lens technology
Premier Japanese polarisation
Total UV protection
Certified safety standards
Removing old lenses for premium Wayfarer replacements

Unrivalled clarity and durability

The Diamond‑Bio collection represents the height of optical innovation, utilising industry-leading Japanese Polarisation, bespoke Anti-Reflective coatings to neutralise glare, and an exceptionally tough outer hardcoat for scratch prevention. Advantageous for the planet and your sunglasses alike.

Bio-sourced materials

Sustainable production techniques

Our Diamond-Bio range incorporates an advanced manufacturing technique using 44% bio-content derived from renewable castor oil. This process reduces the carbon footprint of each lens by up to 50% when compared with standard fossil-based production methods.

Castor plant
Castor bean
Castor oil
Polymerisation
Bio-Polyamide
Reduced glare, sharper vision

Anti-reflective lens coatings

Our made-to-order anti-reflective (AR) coatings for Diamond-Bio lenses combat reflections from both light sources and internal bounce-back, allowing 99% light transmission for superior visual acuity. This advanced multi-layer tech creates destructive interference to cancel out glare, easing eye strain in bright light.

Reduced glare and better clarity with anti-reflective lens coating
Adaptive photochromatic lenses for varying UK light conditions
Adapts to changing environments

Photochromatic adaptive technology

Light conditions differ between locations, so our photo-chromatic lenses automatically adjust their colour depth based on UV exposure. They lighten in overcast conditions and darken in direct sun, providing full UV protection and maximum convenience.

Durable eye protection

Ultra-tough scratch protection

All lenses from The Sunglass Fix feature a hardcoat for robust scratch resistance. Diamond-Bio lenses take this to a professional standard with an ultra-tough hardcoat layer on bio-polyamide, ensuring resilience while remaining lightweight with glass-like clarity.

Elite hardcoat layer for maximum lens scratch protection

Key features of Sunglass Fix lenses

Premier polarisation

Our polarised lenses utilise world-leading Japanese film (boasting 99.9% efficacy) to significantly reduce glare from wet roads, water, and glass.

Total UV protection

Our lenses block 100% of harmful UVA and UVB radiation up to 400nm, ensuring complete eye safety without darkening your vision.

Global safety standards

Lenses from The Sunglass Fix meet the most stringent safety benchmarks internationally, including the AS/NZS 1067:2003 standard.

Breakage warranty for life

Our products are engineered for longevity. Should a lens ever break, our lifetime warranty provides a simple replacement, reducing environmental waste.

Diamond-Bio lens colour range

Burnt Umber (Solid Brown) lens

Burnt Umber

Burnt Umber Gradient (Brown) lens

Burnt Umber Gradient

Burnt Umber Photochromatic (Brown) lens

Burnt Umber Photochromatic

Black Onyx (Solid Black) lens

Black Onyx

Black Onyx Gradient (Black) lens

Black Onyx Gradient

Black Onyx Photochromatic (Black) lens

Black Onyx Photochromatic

G15 (Solid Green) lens

G15

G15 Gradient (Green) lens

G15 Gradient

Steel Blue (Solid Blue) lens

Steel Blue

Experience superior optical performance

High-specification lenses that transform your sunglasses while protecting our planet.