cooler bag rucksack

[tomal]

We're going on holiday to Orlando on the 18th and have read about cooler bag rucksacks which would be ideal to take around the parks. Any ideas where we could buy one online? Am so busy with work that i don't know how much shopping time I'll have. Ps we're looking for one with an approx 20 litre capacity.

Not sure where to buy them online, but we have a Thermos brand one which is excellent. If you throw in a couple of frozen bottles of water, they're still 70% frozen at the end of a very hot day and everything else in the bag is as cold as if you'd just got it out of the fridge.

You could try eBay. If they're expensive (ours was a gift so I have no idea how much they cost) it might be better to wait until you're in the US and then go to Wal-Mart or Target.