I have one and it's fine. The R value is not 4.4 as per the new standard. https://old.reddit.com/r/Ultralight/comments/euwcv1/updated_klymit_rvalues_with_the_new_astm_standard/
Reading all the comments it doesn't seem it's going to be any better than my Aliexpress sleeping pad. I'll do a couple of nights in the garden with my new bag to see if I need a new pad or not.
I did a bike tour across the sates on the mass drop version for a few years back and it was fine. coldest night on it was prob 4 degrees
@atz started
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I have one and it's fine. The R value is not 4.4 as per the new standard.
https://old.reddit.com/r/Ultralight/comments/euwcv1/updated_klymit_rvalues_with_the_new_astm_standard/