Thermarest Z-Lite 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: OC953
  • Now £39.99
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With its accordion-style design and closed-cell foam construction the Z-Lite camping mat is an ounce-counter’s solution to comfort on-the-spot. It’s virtually indestructible and superlight making it ideal for backpacking.

The classic 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.

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Help and advice:
  • Compact: Accordion-style design lies flat and packs small
  • Ultralight: Light enough to carry on virtually any adventure
  • Warm: Egg-carton pattern enhances warmth and softness
  • Regular Size: 51 x 183 x 2cm
  • Weight: 390g
  • Packed size: 51 x 13 x 14cm
  • ASTM R-Value: 2.0

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.

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