Universally recognized the popular Thermarest Z-Lite has a cult following for a reason. Lightweight, foldable and virtually indestructible the Z-Lite has been a staple for hunters and campers world wide. Constructed with heat capturing dimples and closed cell foam the Z-Lite is an excellent choice for warmer weather activities. The Z-Lite can also serve in a layering system when used with an air mattress in snow or cold weather for maximum comfort. The Z-Lite can also be trimmed to custom lengths or widths for even lighter performance.