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Bloc Dune 2

£40.00

Modern aviator sunglasses that compliments all face shapes - now with polarised lenses.

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Bloc Dune 2

Colour : Gold Brown Graduated	RRP:	Price: £40.00		4 In Stock	Add to Basket

Colour : Gold Brown Graduated

RRP:

Price:

£40.00

4 In Stock

Add to Basket

Description

A modern aviator that compliments all face shapes - now with polarised lenses.

XTR Karbon8 Mirror lenses - This Cat3 optical lens provides maximum protection against UVA/UVB and harmful blue light up to 400nm. Distortion free and impact resistant. Tested to BS EN ISO 12312-1:2013.This lens is heavily tinted on a brown base for bright to extremely bright light conditions.

MTX frame, PT tips and non-slip hypoallergenic silicon nose pads. They are durable, lightweight and designed for comfort and fit.

XTR Karbon8 Lens.
MTX injected frames
Non-slip hypoallergenic silicon nose pads.
Suitable for small, medium and large faces.

Buyer’s Guide

Category	Usage
0	Not really a category - transmits 100% of visible light. Protection against grit and ice only.
1	43% - 80% visible light transmitted. 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.