The therm a rest compressible pillow is an ultra soft expandable pillow designed for everyone seeking portable comfort from trekking to traveling its great comfort for everywhere and everyone the pillow packs smaller and expands bigger an ideal size to just pop into your bag without taking up too much room leaving space for essentials no hassle the therm a rest pillow easily packs down to one fifth of its normal size which expands to full size instantly an earth smart filling is comprise