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GLACIER GLASSES | | |
| For mountain activities on snow covered slopes, a good quality pair of glacier glasses is essential to prevent the painful symptoms of snow-blindness. In the mountains, especially in winter, snow reflects 85% of UV rays and their intensity increases by 10% for every 1000 metres of altitude. Under CE standards sun-glasses are catergorised with the highest categories being: Category 1: 43% - 80% visible light transmitted. Suitable for use in cloudy conditions with virtually no direct sunlight eg blizzards and whiteouts. Category 2: 18% - 43% visible light transmitted. Suitable for use as general sunglasses and in cloudy conditions in the mountains, but not direct sunlight in mountain areas where there will be a lot of reflection off snow and ice. | 
Photo: Julbo Nomads and a much travelled hat, north of the Arctic Circle in the Staunings Alps, Greenland in 2003.
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Category 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.
Category 4: 3% - 8% visible light transmitted. For prolonged exposure at high altitude. Will be found too dark for everyday use and should not be used whilst driving a car. Categories 3 and 4 are the only two categories suitable for Alpine and Himalayan mountaineering. |  |
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| | Prices: Please note that all our prices are in UK Pounds Sterling (£) including VAT (see below). An approximate price in US$ is shown in brackets. To work out a more accurate price please click for a Currency Convertor.BMC Members: We regret that we cannot offer a free UK postage service to all and do BMC discount as well. BMC discount is available only to personal callers at the shop. VAT: Included in the price shown is European sales tax (VAT) of 17.5% on most items, which non-European Economic Community (EEC) buyers should not have to pay. Click for our notes for Overseas Buyers. Stock Levels: Stock Levels are now indicated for many items - please click to see why these will not always be 100% accurate and why a zero stock level does not mean you can't order - Stock Levels more.... *Postage: is FREE for most UK Orders (some particularly heavy low profit items are excepted - this is clearly indicated for those items - they are mainly books). Overseas buyers please follow the ordering process through the first two stages for an estimate of postage costs - you can then cancel the order if you wish. NB Parcels will almost certainly have to be signed for, and are likely to be sent by a Carrier who may not have a depot near where you live. It is worth including a trusted neighbour's details, or having your goods sent to your work address. Please click for more details on UK Deliveries and Overseas Deliveries. Sizing: All our boot sizes are in UK (7, 7.5, 8 etc) or European Sizes (41, 42, 43 etc). Click for a Boot Size Conversion Chart. For assistance with UK women's clothing sizes, click for a Clothing Size Conversion Chart. Web order not worked? Please email info@needlesports.com or ring 017687 72227. Please rest assured - we will not use your email address for any reason other than to contact you regarding the order you have placed, and we will never pass on your email address to a third party.
This means that if you wish to receive notification of special offers and other news, then you need to opt in and Register. Also, your credit card details are only obtained on a secure server - this is notified by the golden padlock symbol that appears when you reach this stage of your order. |
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