Thermarest Z Lite Regular

£42.00
A clever compact folding closed-cell mat. Light enough to carry on virtually any route. Egg-carton pattern enhances warmth and softness. US R value is 2.2 (= 3.9 Tog).

Stock Code: CAS ZLITE12

Approximate Packed Weight: 2kg

Thermarest Z Lite Regular

Thermarest Z Lite Regular
£42.00
2 In Stock

A clever compact folding closed-cell mat. Accordion-style design lies flat and packs small. Light enough to carry on virtually any route. Egg-carton pattern enhances warmth and softness.

The proprietary foams are soft on top for extra comfort and dense on the bottom for extra durability.

US R value is 2.2 (= 3.9 Tog).

Thermarest Z Lite Dimensions Packed Weight
Regular 183cm x 51cm 51cm x 14cm x 13cm 390g

 

Togs and R Values: Typically used in the British textile industry, one Tog corresponds to the heat insulation capability of clothing etc which maintains a temperature difference of 0.1°Kelvin while passing a heat flux of 1 Watt/m2*. Some manufacturers (mainly US ones) give an R Value for the insulation properties of their mats. By this they mean an imperial equivalent (°F-ft2-h/Btu). To convert Imperial R values to Togs, multiply by 1.76228. To confuse matters there is also a metric R value, more properly called an RSI value (10 Togs = 1 RSI).
 
The higher the Tog or R (or RSI) value the better the insulation provided.
 
If you aren't totally confused by the above you should add to the mix that testing for R/Tog/RSI ratings is not by any means an exact science and that it is also expensive so, it is alleged, some figures that are given may be acquired by doing little more than taking a competitor's figure and adding a pinch for good measure. Of course, who is alleging what about whom is also not easy to ascertain!
 
*NB One Tog was originally a war time measurement of the amount of warmth retained by a typical male wearing a three piece suit - it originated from research done in the North of England - hence the term tog (though this in turn is thought to originate from the Roman word toga)!

We have placed cookies on your device to help make this website better.

Your order contains no items