I think that's one of the problems with traditional resumes/CVs. They focus on work experiences, and not the entirety of your experiences - work/social/etc.
Because here is what leaving a job to go backpacking tells me: You are willing to take risks when the opportunities present themselves. The unknown (will I find a job later) doesn't scare you. You value learning about other places/cultures, which will give you perspectives other people might not get (let's be real, 2 weeks in a resort hotel on vacation does not teach you about another country's culture).
If you can honestly translate your backpacking experience into qualities that a company would look for, you'll have no problem. In fact, you should probably explain that in your cover letter to potential employers anyway.
Because here is what leaving a job to go backpacking tells me: You are willing to take risks when the opportunities present themselves. The unknown (will I find a job later) doesn't scare you. You value learning about other places/cultures, which will give you perspectives other people might not get (let's be real, 2 weeks in a resort hotel on vacation does not teach you about another country's culture).
If you can honestly translate your backpacking experience into qualities that a company would look for, you'll have no problem. In fact, you should probably explain that in your cover letter to potential employers anyway.