Help with Manufacturing drawings for packaging

Hi, Im working on a packaging job currently and could use some assistance. I need to design a bag packaging for clothing similar to this

http://cevanneshop.multiply.com/photos/album/28/flip-flop-bags

Does anyone have any technical drawings examples as to what a manufacturer is looking for? Views, dims, stitching etc? I havent done much of this more soft goods design

Thanks!