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Showing 1 of 30 conversations about:
Massdrop x Klymit Insulated V Ultralite SL Sleeping Pad
RedfishTheCat
15
Sep 4, 2020
As a reminder, don't forget it's a R1.9 with the new standard and not R4.4 (even with the old standard, this mat never was R4.4, impossible to sleep on snow with).
UtahBrian
27
Sep 4, 2020
RedfishTheCatSo less than a foam pad like the Z-rest or Ridgerest?
raul_cerda
0
Sep 5, 2020
RedfishTheCatCan you help me with this? I don’t know about standards. This insulated version should help in like 1° Celsius?
RedfishTheCat
15
Sep 5, 2020
raul_cerdaI will try (english is hard for me):
-The non insulated inflatable mat kllimyt x drop is R1.3.
-Usually a non insulated inflatable mat turn around R1.0 (never see better than R1.3, and the lower I see is R0.8).
A R1.0 mat able you to sleep on ground 10°C.
Every +1 on Rvalue allow to go 7°C lower.
So it give:
-R1.0: 10°C
-R2.0: 3°C
-R3.0: -4°C
-R4.0: -11°C
-R5.0: -18°C
Etc...
But ground temperature don't mean air temperature.
Even if during night air is -5°C, if air was 10°C during day and you put your shelter on a ground who take sun all over day.... the ground can be near 10°C. So a mat with R1.0 can be enough.
In the same way, if it was cloudy all the day with 5°, maybe ground will be at 0° and R3.0 will be necessary...
For sleeping on snow (which can be very much below 0°C), you need R3.0 (limit) or better R4.0 or more.
For speep on rock ground in middle of winter or on ice, R5.0 or more.
For the Klimyt X drop insulated, 500gr is too heavy for only R1.9.
You can find other inflatable mat with R3to4 for 350-400gr (even R4.2 for 330gr).
But the Klimyt x drop non insulated (R1.3) is good for 330gr, for summer use only.
And for this price, even very good.
(Edited)
raul_cerda
0
Sep 5, 2020
RedfishTheCatFirst of all, thanks for the reply. I will go to Torres del Paine (Chile) and it's kinda cold there so i think this sleeping pad it's not going to work for me, maybe using a foam matt or something to separate it from the ground?. Thanks again. for your time and help.
(Edited)
RedfishTheCat
15
Sep 7, 2020
raul_cerdaWhen you use 2 mats (2 foam or a foam+inflatable), the Rvalue add up.
So, if you use an inflatable mat R1.3 (ex: Klimyt x Drop static V UL) and a foam mat R2.0 (ex: Thermarest zlite sol), it give you a total of R3.3 (that start to be use on winter).
More versatile, but heavier (330+410=740gr) than a single good insulated inflatable mat (ex: Neoair xlite 330gr for R4.4).
(Edited)
RedfishTheCat
15
Sep 8, 2020
UtahBrianYes ... the fault of the space between the rolls (? sorry not sure of the word) which lets the cold pass.
NoaL
7
Oct 2, 2020
RedfishTheCatWhere do you get that information? I see you commented this on a lot of posts but do not provide any proof of that, and I couldn't find anything while googling..
RedfishTheCat
15
Oct 24, 2020
NoaLThe massdrop x klymit is the classic Klymit insulated V light with minor modifications (lightest fabrics and valves), same insulation, same form factor.
On Klymit website: https://klymit.com/collections/sleeping-pads/products/insulated-ultralite-sl-sleeping-pad?variant=31722980573274#
There is writed R4.4 now... strangely, on january 2020, Klimy was updated is website with new Rvalue, and writed R1.9... it seem it go back (!).
We talked here: https://drop.com/buy/massdrop-klymit-ultralight-v/talk/2569045
And here: https://www.randonner-leger.org/forum/viewtopic.php?pid=553768#p553768
Chart here: https://www.randonner-leger.org/forum/viewtopic.php?pid=553879#p553879
Many users on reddit they too cold on winter ont the klymit: https://old.reddit.com/r/Ultralight/comments/a1uuds/new_rvalue_standards_for_sleeping_pads_in_2020/
Me, tested too on ground 0°... impossible to stay more 10min, totally cold (no problem with Neoair xlite).
NoaL
7
Oct 24, 2020
RedfishTheCatThank you for the response, but the mattress you have linked to (https://drop.com/buy/massdrop-klymit-ultralight-v/talk/2569045) is not the insulated version, also I don't see on Klymit site the R-value you mentioned, in the meantime I contacted them and was informed the new standard results should be published by the end of the year, so I do not really understand where do you have the results (R-value of 1.9)? I do agree though that it will be smarter to wait for the new specs under the new standard.
(Edited)
RedfishTheCat
15
Oct 24, 2020
NoaLThe discussion on the other drop product was just to tell the new Rvalue published.
I know this is not insulated produtct.
On massdrop website, you can find Rvalue inside the "Specifications" chart.
https://klymit.com/collections/sleeping-pads/products/insulated-ultralite-sl-sleeping-pad?variant=31722980573274
Weight 16 oz / 454 g
Dimensions 72 x 20 x 2.5 in / 183 x 51 x 6 cm
Packed Dimensions7 x 4.5 in / 18 x 11 cm
Shell Material20D polyester
R-Value4.4
WarrantyLifetime
As I said, on january, it was writed R1.9 (all forum/blog talking of the new Rvalue take the info from klymit website at this moment)... and I see it myself.
Now (since how many time ? don't know, don't checked it since january), they write back R4.4... don't know why.
(Edited)
RedfishTheCat
15
Oct 24, 2020
RedfishTheCatPS: And this information (R1.9) was consistent with the feelings of people who tested this mattress on cold ground (0°C or less).
A R4.4 would be ok for ground of -14°C... this mat is not.
PS: Sorry if my english is not good (french are bad with learn langages ^^).
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