OMM Core Liner. Used a few times in the snowy mountains. It shows some signs of use, but I think it's still usable. Stuff sack is not included. There is a thin spot on the right side of the neck (see photo 3). There is a small hole of about 2 cm on the right side near the stomach (see photos 4 and 5). The hole is not a problem for use (I don't think it will affect the cold protection performance), but please refrain from purchasing if you are concerned. Please check the condition in the photos. I am also selling a sleeping bag at the same time. I will give a discount for a set.