Stays very cold. We use with the LunchBlox kit ...
931916
Stays very cold. We use with the LunchBlox kit and lunch box. They stay cold all day! This addition makes the overall lunch box packing very versatile.
3067577
This is perfect for my daughter's lunch.  I put her food with an ice pack at the beginning of the day and the ice is still cold when I pick her up.  The best part is that the lunchbox is washable (even machine washable)!
3663427
These keep my daughter's lunch cold for lunchtime at school without taking up much space at all in her lunchbox. They are still cold (but no longer frozen) 7.5 hours later when she gets home.
3605310
A gift for my Husband, a long time fan, for Christmas. It is a very nice cooler type lunch box that keeps his smoothies and sandwiches nice and cold. I gave it a four star rating because I think the expandable part won't be used. I keep it unzipped all of the time. They could have done without it, in my opinion.
2333337
It stays cold for many hours. Works pretty well, and it has nice design.
2327646
Works great!  Has held up after several uses in my daughter's lunch box.  Keeps her sandwiches cold for several hours until lunch time.
3184411
These fit so much better than the ice packs in the bags. I like these for my lunch bag and bought a second set for my fiance. They keep frozen for as long as I need them to. Would recommend.
4336928
A lot of cool for the little bit of space it takes up.  It fits in any lunchbox or cooler easily and stays cold for awhile!
4068057
My children no longer like to carry a traditional lunch box, so we purchased this one.  We picked this sandwich cooler because it keeps sandwiches cold for up to 4 hours and can easily fit in the front pouch of a backpack.  It's a great product that can easily accommodate two cold sandwiches that are not too thick.
1523542
This lunch bag left my child's lunch cold.  One word of caution - this lunch bag is a lot heavier than other lunch bags since when frozen.  My child did notice the weight difference.  However, the fact that it kept food extremely cool - it was well worth it's purchase!
4721105
As a teacher and a zone dieter I use a LOT of food throughout the day - this bad boy holds it all!  Keeps it cool if I have something frozen in it to start the day - it's still frozen at 3.  If I am not using anything that is frozen, I throw in an ice pack and it stays cold all day - even into the late evenings.  It stretches around all the containers I stuff it with!  I highly suggest this adorable lunch bag!
1466983
I used these for the first time today in my insulated lunch bag. I had two in the bag with a frozen dinner, salad, and some other items. The liquid in the ice packs was still mostly frozen after about 4.5 hours, and my food was nicely cooled My frozen dinner was still mostly frozen as well. These are very convenient.
1468555
I bought 2 of these for my boys' this year. I love PackIt products and these are fabulous. It does not stay as cold as the upright style, but it still does a great job at protecting their lunches until lunchtime.
4112769
This is a great lunch bag kit when used in conjunction with the Rubbermaid Lunch Blox. They can be mixed or matched and holds a variety of foods. Happy with this item, used daily.
3916565
This is a well made, insulated lunch bag.  Keeps the food cold ( with the help of a frozen pack).
2048913
So convenient and they stay cold for a pretty long time. My husband puts them in his lunchbox everyday and keeps his food nice and cold.
1159108
Love the size of the containers and the fit perfectly in my insulated lunch bag but the icepack doesn't stay cold for very long. I ended up purchasing a larger icepack at Walmart and it works fine.