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Big Agnes says:
TwisterCane™ BioFoam Sleeping Pads are engineered for ultralight backcountry summer trips to high alpine winter conditions. The closed-cell foam technology provides a firm, cushioned barrier between you and the ground; smooth on one side with a tire tread pattern on the other. Use alone or layer it with an air pad for added insulation. Made from sugarcane biomass in a process that removes carbon from the atmosphere and sourced using Proforest standards.
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|Specification||Construction + Materials
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.