This EVA foam pad is an ultralight closed-cell (CCF) sleeping mat made of EVA foam, 3 mm thick, offered in a range of lengths from 50 to 200 cm so you can match the size to your height or intended use. The material doesn't absorb water, so it stays lightweight even in contact with wet ground or dew.
With a low R-value of 0.3, it isn't meant as standalone insulation for cold nights but rather as a supplementary layer — typically placed under an inflatable pad, where it boosts overall insulation and protects the inflatable layer from punctures by sharp stones or twigs. It works equally well as a back panel in a frameless ultralight pack or as a stand-alone sit pad for breaks. The 150 × 50 cm variant weighs just 78 g, making it one of the lightest options in its category. Compared with thicker self-inflating pads, it offers neither comfort nor winter-grade insulation — it's purely a lightweight supplementary layer for summer use.