Klymit Inertia X pad

[Kelly G]

Hi, Amazon has this pad for $44 right now. Older model.

Kelly

[Dondo .]

Thanks for the heads-up, Kelly.  Recently, I picked one of these up after someone in another thread mentioned using a backpacking cot.  It occurred to me that this might be able to function as an inflatable cot with my SOlite short laid over it.  Combined with a MYOG foam pillow, I’m finding it surprisingly comfortable.  My question is about the R-value of this combination.  The SOlite is R 2.1 and I’m assuming that the X frame itself is about R 1 based  on tests of other air-only pads.  But what about the cut-outs?  Does the CCF laid over the empty spaces provide enough dead air to give the whole X frame a R 1?

Speculation encouraged.

 

[Kelly G]

Hi Dondo, I’m planning a similar set up. Use it for a cot, put a blue Wally world ccf over it, with my MYOG foam pillow. Maybe I’ll get a better ccf, that folds up. I read lots of speculation, yes, that the pad is R value 1. The open space, I would guess is also 1, being just trapped air. I wonder about a X Frame sandwich with a GG Thinlight on the bottom, ccf on top. Hmm.

[Dondo .]

An X Frame sandwich.  I like the idea, Kelly.  The 75d probably doesn’t need extra protection but the extra .4 or .5 R-value would certainly be welcome.  When I started playing around with this kind of set up, I assumed that the challenge would be comfort.  But I’m finding that boosting the insulation without adding too much weight is tricky.  I’m curious to see what you come up with.

[Daniel C]

In another thread there was a lot of talk about the new ASTM R ratings and how the Klymit Insulated tested as a 1.9 or something, while they advertise a 4.4. The main issue is that it seems these pads lose a ton of heat in the air baffles, or in their Static-V line the ~1″ V-baffle.

My theory (since they market the concept,) is that they are assuming that the bag’s insulation will have room to expand and add R-value to the voids. So I guess you would get some stored heat with the trapped in a CCF sandwich. With no insulation, I would assume the cutouts and the air inside the pad would stay about the same temperature.

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