My wife recently purchased a Munchkin "Baby On-the-Go insulated bottle bag from Target in O.C., California. The first day we opened the bag to use it, I just noticed a prominent greenish gray stain located along the light gray vinyl liner of the bag. The grayish green substance or stain was much heavier along the stitched seam. Honestly, it looked like MOLD if I didn't know better and knew the bag was new, never exposed to moisture. Do they use a glue to help seal the insulation? If so, is this glue toxic in nature? I know this is a cheap bag - made in China of course - yet the stain is a bit ominous looking and should have been picked up by quality control. I contacted Munchkin Central as a courtesy to the company and other potential parents, got a disrespectful customer service representative who asked that I send pictures and descriptions of the issue yet offered me no compensation for my time and effort. Again, this is a $10 product but I am a very busy professional type and so too is my wife. I got so irritated with the requests from this representative I contacted the corporate office and demanded to speak to the CEO. He never called me back... to busy running this little sh.t company. Thinks he's in charge of the White House or Exxon or whatever. Anyhow, I'd be very reticent to use this bag, I would have concerns about toxicity especially because the bag is manufactured in a country known well for it's concern for consumer safety --wink, wink- China. I mean LACK of concern for safety, especially with regard to products made for kids of the foreign export type.