Forclaz Trek 500L, Self-Inflating Backpacking Mattress in Gray, Size Large

A self-inflating mattress consists of an airtight envelope glued to an open cell foam in which the air circulates. When you unfold your mattress, it will regain its shape and thickness (2.5 cm for this MT100 mattress) and fill with air. However, it requires some mouth inflation so you can adjust it to the pressure level suitable for you. Self-inflation is more or less noticeable depending on the thickness of the mattress. | Forclaz Trek 500L, Self-Inflating Backpacking Mattress in Gray, Size Large