I got my ice packs the end of last week and used them Tuesday so have some feedback. My teenager packed her own lunch and popped in one of the packs. I asked her at the end of the day if her lunch was cold at lunch time. She said it was and said she didn't notice any difference in the temp between the new ice packs and what we previously used. :thumbsup: Her lunch is packed by 8am and she's eating at 12:10pm so around 4 hours.
DD2 is in kindy and she opens hers at 10:15ish, 12:15ish and 2:15ish for 2 snacks and lunch. At snack time her lunch bag would be left open for about 15 minutes each time and at lunch for 20-30 mins. I picked her up after school yesterday and opened her box at 4pm to see if anything was in there. She still had leftover cut up apple and cucumbers. Everything was cool and the ice pack was still cool. Definitely not cold or room temp, but not warm and nothing was mushy.
So, these seem to work absolutely fine for keeping things cold until lunch time. For my kids, things are still cool enough to eat at the end of the day but we don't pack meat and I have no idea on meat coolness guidelines so you'd want to test that out yourselves if your kids need to eat out of the box after school and if you've packed meat.
Oh, I didn't get to see cheese or yogurt at the end of the day so not sure if it would be cold enough, but not sure if it would have been cold enough with our prior packs either. We don't pack those items often and most times food doesn't come home at the end of the day, so not sure if I'll have feedback on that anytime soon. Definitely would be fine at lunch time though.
The ice blanket style is nice. My prior packs would sometimes freeze with a large lump on one side because something shifted while closing the freezer drawer or my kids weren't careful to lay them flat. The ice blanket pockets freeze evenly but then have the flexibility on the seams. The pouches are nice for protecting the packs in case a clumsy kid should drop one while packing their lunch or set it on something sharp on the counter while packing their lunch or something.
The shape doesn't fit the bags lunch pocket like I expected. The ice packs don't go the full height of the lunch bag. I see they have modified a couple colours of their lunch bags with a pocket to better fit the ice pack. LOL Seems backwards, but meh. The width is fine and that's what I most wanted was something wider. And if they were full pocket size, they'd be heavier which is something the PlanetBox doesn't need.
I've got pics of the ice packs in my packages thread
http://www.car-seat.org/showthread.php?t=192063 (first post has link to pics)