The Exped Flexmat is Exped's thickest and warmest closed cell foam mat at 3.8cm thick. The folding accordion style design ensures that your mat always folds up as compact as possible. This style of closed cell foam mat has many uses. Used on its own the Flexmat Plus is surprisingly comfortable for its thickness thanks to the egg box style surface. In colder conditions you can pair it with an air mat to provide puncture protection. Thanks to the fact its pretty much indestructible you can move it around camp as a seating surface or yoga mat without having to worry about thorny ground. Exped Flexmat Plus Features: R-Value 2.2 Accordion-style design packs lots of comfort into as small a space as possible Closed-cell foam is incredibly durable, providing an exceptional value and many years of worry-free performance