Dark lenses sunglasses | Cat 4 sunglasses

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Trekking walking sunglasses | Climbing and mountaineering

The Glacier is a CAT 4 pair of glasses with the highest category 4 levels of protective filtering from dangerous levels of UV, IR & LT. The Glacier is fitted with side shields and cups to prevent light from entering your eyes from any direction other than through the protective lenses. The frame is made from TR-90 a special material that is not affected by extreme temperature conditions. The Glacier also is fitted with a retaining elastic cord so they can be worn around the chest when not in use.

CAT 4 Protection
95% IR (Infra-red) protection
100% UV (Ultra Violet) protection from (UVA, B & C)
LT 96 Allowing just 4% light transmit ion
TR-90 Frames
Side shields and cups
Elastic retaining cord
Frame width temple to temple: 135mm

Product Code: 211 Price £38.00
Quick guide in how to enter your prescription

SPH (sphere) Please ensure that when you select the power of your sphere from the drop down box that you pay particular attention to choosing the correct + or value.

CYL (cylinder) as above ensure that when you select the power of your cylinder from the drop down box that you pay particular attention to choosing the correct + or value.

AXIS (axis) is the value you enter from 0 to 180

ADD/NEAR (addition) you need only enter a value here if you require a reading correction. If the lenses are not having a correction for reading, leave as NONE.

Prism & Base Type in the correction as it appears on your prescription. This value is not common to all prescriptions. If your prescription is blank leave the box empty.

PD (Pupillary distance) the distance between your eyes. You may have been given or measured your PD with a single number e.g. (64mm) If this is the case simply divide your measurement by 2 e.g. a 64mm PD becomes Right eye 32mm and Left eye 32mm.

For a more detailed understanding about your prescription read our advice. Understanding more about your prescription. If you require further help, contact us or email your prescription, or professionals will take the information we need for you.

IMPORTANT NOTICE: Please note that PRESCRIPTION SPORTS EYEWEAR is non-cancellable, non-returnable & non-refundable (unless faulty) and by electronically signing (ticking our T&Cs) our terms and conditions you are agreeing to be bound by these conditions.

ORDERING PRESCRIPTION EYEWEAR FOR SOMEONE UNDER THE AGE OF 16 YEAR: We can only process prescription orders for anyone under the age of 16 if the order is in conjunction with a qualified optician. The order must be despatched directly to the optician for the eyewear to be dispensed in their presence. The optician may make a charge for their professional services.

TIME SCALES: The process of making prescription sports eyewear is far more complex than normal spectacles. The lenses angles, lens sizes and materials used means the manufacturing time scales are longer. You should allow 3 weeks from the time of order, specialised coating can take longer.

PRODUCT IMAGES: The product images and lenses shown are there as a guild only. It is for the customer to select the prescription lens type colour and finish.