I am planning on making a bug bivy similar to Patti's on Jeff's website. I want to do one zipper 3-4 feet long on the side in the middle, and then another zipper 2-3 feet long on the bottom. This would allow the door to open in an L shape.

The only disadvantage to this is that I would have to put the bug netting on before I hang and could not leave it open so to speak after I have it one. It would have some weight and hassle with the zipper.

My problem is that I do not know anything about the types of zippers or their ordering codes. What type should I get? If possible I would like one that does not snag the bugnetting as much as others.

I am planning on making a second one similar to the hammock sock I made, but I want to try one like this.