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Riccardo
08.11.2022
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by Riccardo helpful
The thread was edited on 08.11.22
Hi Reinhold,
The R-Value is 1,9 ASTM F3340-18 . The following link will provide some interesting reading for you:
https://www.klymit.eu/pages/sleeping-pads-astm-r-value?_pos=1&_sid=90f1ba10b&_ss=r
Similar to EN/ISO ratings for sleeping bags, the ASTM R-value standard ensures an “apples-to-apples” comparison of R-value for the sleeping pad market. R-value is a measure of a material or structure’s thermal resistance to heat loss. In this case, the structure is your sleeping pad. The higher the R-value, the more thermally resistant the material or structure is. This number gives a definitive rating for customers to compare the warmth of various pads. Thereby, allowing them to find the right sleeping pad for their needs. The problem is , not all manufactures have conformed to the new standards like Klymit and Thermarest have and some manufactures do not have their mattresses tested at all. We can only state the information made available to us.