In my deployment pack for National Medical Response Team-WMD East, I packed everything in ziplock bags and tried to squeeze out the air. Unfortunately, the bags don't seal all that well. <br>I then packed the soft goods in packing bags with a dual seal and one way valve that I got from Brigade Quartermaster. They do hold the seal and don't "re-inflate" like zip locks do.<br>These are advertised on TV all of the time.<br>If I was not using this stuff so often, I would use my vacuum sealer that I use for the freezer and heat seal them after sucking all of the air out. Just too expensive to do with the frequent use I am getting out of the stuff lately.