These could be areas where insulation from cold is reduced so it ’ s hard to see how this pad is accurately given an R-value of 4.2 .
The material and construction feel cheap however , we are yet to see a problem , perhaps more time will tell . If you ’ re after a low cost , lightweight , comfortable sleeping pad , then the Vertex could be for you … you be the judge to whether it ’ s worth spending the extra for something more up to the task .
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