Ok, I found my packing slip for this product, which i ordered from QVC.
Item #F29226 Pack mate Set of 12 space saving storage & travel bags $26.86 [ordered last November, 2nd order]
2 jumbo, 4 large, 4 medium & 2 small.
snowgooseltd: I have found that if the clothes are in there for a few days to a week (I don't pack much earlier than that), they are just fine. After 7 years at TDS, I can fold a mean shirt!
If you are packing something that is linen or even a linen blend, you might have to iron it, but the stuff i have taken with me - mostly 100% cotton & denim - comes out fine. I fold them nicely and put them in the bags, and I don't over stuff. I squeeze as much of the air out as possible (it looks quite comical actually, when I do this) and put the bag in the suitcase. I did find that after being in the bags for months (ie November - early May), the stuff needed to be ironed. Hope this helps!
PS: I believe that QVC sells smaller sets of these bags for under $20 if you want to try them. They also have a 30 day money back guarantee.