Works just like the aluminum sitting mats found in outdoor recreation stores, but at a fraction of the price. It is also larger and is the size of the standard beach straw mats. Easy to clean, lightweight, and compact (can be folded up to fit in a backpack). The shiny side acts as a reflective surface to keep the mat warmer than the rest of the ground. The designs tend to lean towards girly. It is versatile for other purposes as well.

Worth more than the asking price!