This does not have a removable liner. It does have a detachable vest, so it can be worn 3 ways, but not 4. Only 3 jackets in the Smarty line have the removable liner. FWIW. Still sick though. Runs big in the vest. Medium had a lot of area up front in girth. I returned for small, and while I liked the fit of the shell jacket better in medium, the vest fits so much better in small. 5'-10", 170 lbs, athletic build. Small is more of a street fit for my build, and I'd like it if the jacket were bigger in the chest and shoulders. The ideal combo would be M shell, S Vest for my size. Odd the M vest is so huge. Disproportionately so compared to the jacket, but it's not really tailored to a guy my size I guess.