How well do space bags do in airplanes?

Have your space bags ever leaked? Yes or No. Where did you buy them (Online, retail store, etc.)?

• I know this has been answered before, but there's mixed info about whether Space Bags (the kind you vacuum out all the air) actually work. Some people say they don't work at all (leak immediately, leak within 24 hours, etc.), and others say they work fine. Just a quick poll before I spend the $$$ to buy the 5 or so space bags that I need. Also, trying to find if people have better luck buying them from retail (Walmart, Target, etc) or online (spacebag.com) in terms of whether they leak or not. Thanks in advance.

• Answer:

  Space Bags, will eventually "leak", by thier nature, plastic will "breathe" or transfer oxygen around seals and other places that are "dying to get in". Remember, by nature, (I feel a pun here some place), Nature abhors a vacumn! Except in Outter Space, its hard to create a "perfect vacumn" on Earth, (Why do you think the Astronauts work underwater to simulate a vacumned enviroment?)... So, after awhile, (probably not in just 24 hours, unless they are extremely cheap bags), they will leak eventually, and fill with air. I wish you well.. Jesse