Thermarest Z-Lite SOL Regular Closed Cell Foam Sleeping Mat

ASTM R-Value: 2.0 / Dimensions: 183 x 51 x 2cm / Packed Size: 51 x 13 x 14cm
Weighs 410g
Code: OC2692
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Thermarest's lightest most compact closed-cell mattress is now warmer than ever: a new aluminized surface reflects heat increasing overall warmth by nearly 20%.

Therm-a-Rest says:

Always a favorite of the ultralight elite, the Z Lite SOL expands upon the utralight performance of the Original Z Lite by adding our reflective ThermaCapture™ coating to capture radiant heat and increase overall warmth by nearly 15%. Factoring in the system of heat trapping dimples, the Z Lite SOL has an R-Value of 2.0, making it perfect for use on its own in warmer weather or layering under another pad for extra warmth in the cold. The proprietary foams are softer on top for extra comfort and denser on the bottom for extra durability, making the Z Lite SOL an idealclosed-cell foam pad for those in need of an ultralight, highly compact and super-reliable sleep system.

The Z-Lite from Thermarest takes the closed cell foam mat to the next stage moulded with an egg box surface it offers more comfort and insulation that conventional closed cell foam mats. The SOL version is warmer for minimal weight penalty.

- Reviewed by Ultralight Outdoor Gear

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  • Advanced Warmth: ThermaCapture™surface reflects radiant heat back to your body, amplifying the warmth of the heat-trapping dimples by 15%; use reflective side-up.
  • Compact Design: Folding design is compact and easy to pack.
  • Extra Durable: Virtually indestructible, the proprietary closed-cell foam provides lasting, economical comfort.
  • Layer It: Add 2.0 R-Value and protection from punctures when you layer the Z Lite SOL under another sleeping pad.
  • Endless Utility: Sleeping pad, sitting pad, mosquito swatter... Fold it and find your best uses!
  • Weight: 410g
  • Size: 51 x 183 x 2cm
  • Packed size: 51 x 13 x 14cm
  • ASTM R-Value: 2.0*
  • Fill material: Crosslinked Polyethylene
  • Foam type: Molded closed cell

*ASTM R-Value:

From 2020, there is a new industry standard for measuring the R-value (level of insulation) of sleeping mats – ASTM F3340-18. This new standard is the sleeping mat equivalent to the EN rating for sleeping bags.

You can now directly compare the R-value of mats rated using the ASTM F3340-18 with confidence that is a fair and accurate comparison between mats. In simple terms, the higher the R-value, the warmer the mat.

In general terms, an R-value below 2.0 is for summer use, 2.0 to 4.0 is for cooler 3 season use and 4.0+ is for winter temperatures. This will be also be dependent on your sleeping bag, how cold you sleep etc. Please contact our customer service team if you need advice on choosing the right mat for your activity.

Showing our 2 Thermarest Z-Lite SOL Regular Closed Cell Foam Sleeping Mat reviews with an average rating of Very Good. Would you like to write a review?
Review Summary - 4 out of 5 based on 2 ratings.
June 27, 2021 | Paul W
Fantastic Service

Not often you get good service in this day and age but I have to commend Ultralight Outdoor gear, besides the fantastic selection of products on their website I recently ordered the Thermarest Z-Lite Sol Mat from them which I have been trying for sometime to get hold of. I finally got one from these guys and service speed was brilliant. Amazing product which I can't wait to use on my back packing adventures back home in South Africa in December. Really brilliant service, will definitely use UOG again, highly recommend these guys. Very happy customer.

Ultralight Outdoor Gear Limited
August 8, 2020 | Charlotte
Durable and multi-purpose but uncomfortable

This product is great for sitting outside the tent or stopping for lunch while hiking. It can also be handy as a windbreak when trying to boil water and seems virtually indestructible! However, I am generally a side sleeper and have found it impossible to get a good nights sleep.

Ultralight Outdoor Gear Limited