I need some very 'breathable' fabric for a project. (Making acoustic baffles.) Something like burlap or a bit finer, but air must pass through easily. (Maybe like a cheap drape material?) Is there some area in China Town where I might find something like this? (I've bought fabric at a shop corner of Asoke and Sukhumvit, but pretty sure they don't have anything this 'rough;' mostly for making dresses and suits, etc. and quite expensive.) Thx.

upholstery supply shops on the street that central general hospital ( thanon suapa ) is located and the side streets in that area ,

they probably have burlap or something like that also vinyl and leather and upholstery tools