If something can be transferred from one person to another, it's transferable. That's good news, if you're talking about front-row tickets to the Mariah Carey concert.
One way that anthropologists decide whether a group has a "culture" is by determining whether the skills and habits they practice are transferable from one generation to the next. For example, chimps are known to teach their young how to use twigs to fish for grubs. That means the skill gets passed on — it's transferable. In the legal or financial sense, transferable refers to something the value of which can be passed from one person to another. Remember: those airline tickets aren't transferable: only you can use them!