Pentire Slate - Polarised Blue Mirror Lens Polarised Mineral Glass+ Lenses

P E N T I R E - S L A T E

Blue Mirror Polarised Mineral Glass+ Lens

The unisex and classic design of our sleek Pentire sunglasses compliments various face shapes, making them suitable for both both men and women.

Paired with our polarised blue mirror polarised mineral glass+ lenses, offering complete sustainability and full UVA/UVB 400 protection.

The rectangular frame is made from recycled trawl nets and lines recovered from the UK coastline suiting medium and larger sized faces.

Cases are included free with each pair of ordered frames.

OUR POLARISED MINERAL GLASS+ LENSES

Optical Quality

ABBE VALUE: 59 vs. 32 for conventional plastic lenses

Mineral glass has by far the greatest optical clarity of all lens materials. There’s a reason why photographers use glass lenses: plastic mediums disperse and distort light. The optical clarity of glass lenses is measured with an Abbe value, with lower numbers representing greater dispersion and unwanted chromatic aberration.

Sustainability

RECYCLABILITY: INFINITE vs. plastic lenses not currently recycled

Glass is infinitely recyclable and is widely recycled. In comparison to plastic, optical lenses are made from virgin plastics, aren’t domestically recyclable and also produce microplastics when cut to shape.

Technology

REFLECTION FACTOR: 1.47% vs. 8.6% for un-coated plastic lenses

All of our lenses are equipped with an industry-leading anti-reflection coating on the inner surface of the lens, which eliminates distracting light reflections from light entering from behind the lens.

Scratch Resistance

MOHS HARDNESS VALUE: 6.8 vs. 2.9 for conventional plastic lenses

Chemically-hardened glass is more scratch resistant than any other form of lens by a huge margin. Waterhaul Mineral Glass+ lenses are designed to withstand the elements of sand and salt which come with adventure and deliver lasting performance.

Learn more about Barberini mineral glass lenses here.

FRAMES

- Italian engineered, manufactured and hand finished from 100% recycled UK fishing gear, absolutely zero virgin plastic.

- Classic rectangular edges for an iconic, easy to wear look that complements various facial features.

- Matte slate grey finish that alludes to the material's origins as ocean plastic.

- Ultra-durable 5-barrel hinges designed to withstand active lifestyles.

- 'Recycle and Renew' lifetime warranty. We stand behind the quality of our products, that's why every frame comes with our lifetime warranty. If your frame breaks, we'll happily replace them, free of charge.

- Engineered comfort for wearability throughout the day thanks to the lightweight, recycled plastic frame.