Bloc Stingray

£40.00

The iconic Stingray is the definitive in performance optics, utilising a streamlined frame and close cranial fit. Category 3. Polarised.

Bloc Stingray

Shiny Black/Polarised Grey Lenses
£40.00
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Knockout looks and performance optics, with a streamlined frame and close cranial fit. The Karbon TX injected frames are hand finished and are flexible, durable, lightweight and designed for comfort, fit and performance. The sports hinge provides both strength and performance and the hypoallergenic nose pads are designed for comfort and fit. This polarised version uses a Category 3 polarised S11 Smoke lens which virtually eliminates uncomfortable glare from reflective surfaces, the ultimate lens for driving, cycling, winter and water pursuits.

  • Sports hinges.
  • Lightweight BX1000 core injected temple tips.
  • Metal branding.
  • Anti Glare Category 3 Polarised lenses.

Suitable for medium to large faces.

Category        Usage
0 Not really a category - transmits 100% of visible light. Protection against grit and ice only. 
1 43% - 80% visible light transmited.Suitable for use in cloudy conditions with virtually no direct sunlight eg blizzards and whiteouts 
2 18% - 43% visible light transmitted. Suitable for use as general sunglasses and in cloudy conditions in the mountains, but not in direct sunlight in mountain areas where there will be a lot of reflection off snow and ice.
3 8% - 18% visible light transmitted. Suitable for Alpine and Himalayan mountaineering for most uses, but for prolonged exposure at high altitude Category 4 is recommended.
4 3% - 8% visible light transmitted. For prolonged exposure at high altitude and especially if you have weak eyes. Will be found too dark for everyday use and should not be used for driving a car.

*Categories 3 and 4 are the only categories suitable for Alpine and Greater Ranges mountaineering - however, just because the lenses are suitable does not mean that the design of the glasses is.

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