Might I suggest lining the burlap (if you go with burlap)? It will be itchy as hell otherwise. Also using a lovely product called Fray Check on your edges will help prevent it fraying to the point of falling apart. I used it on the cloak on my Arkham Knight Scarecrow which I frayed to death but the frays never go further than where I put the Fray Check, so it works great. Might be worth checking out (pun unintended)