Klymit 2022 Inertia O Zone Regular Sleeping Mat

ASTM R-Value: Not Quoted / Dimensions: 183 x 55 x 4cm / Packed Size: 15 x 9cm
Weighs 380g (excluding bag)
Code: SS22753
  • £99.99
  • (FREE UK & EU Delivery)
+ In Stock Now   |   Usually dispatched within 24 hours

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Klymit says:

Inertia pads are engineered exclusively around features that deliver everything you need and nothing you don’t for minimalist backcountry adventures. Each iteration provides support for your head, shoulders, hips, and feet while cutting ounces elsewhere. Unique cutouts in each Inertia pad maximize the loft & warmth of your sleeping bag, similar to our V-Chamber welds in the Static V™ line. The result is an unconventional design perfect for a light, portable, and comfortable sleep experience.


We're working out what we think about Klymit's 2022 Inertia O Zone Regular Sleeping Mat, we'll add our comments here in due course.

- Reviewed by BasecampGear

Help and advice:
Choosing a Sleeping Mat
  R-Value Explained
  • Minimalist Design: Advanced patterning removes all extraneous material to creates an ultralight, minimalist design that delivers comfort and support for only 13 oz. and packs to 3.5” x 6”.
  • Body Mapping: Advanced patterning places chambers only where padding is needed and eliminates them where they are not, allowing us to shed significant weight without sacrificing comfort.
  • Ultralight Material: Used on the top of the pad, the 30D polyester material sheds grams while maintaining appropriate durability.
  • Patch Kit included for emergency repairs
  • Weight: 380g (excludes stuff sack)
  • Dimensions: 72 x 21.5 x 1.75 in / 183 x 55 x 4 cm
  • ASTM R-Value: Not Quoted
  • Packed Size: 6 x 3.5 in / 15 x 9 cm
  • Fabric: 30D Polyester
  • Warranty: Klymit Limited Lifetime Warranty

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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