How long does it stay cold?
454480
I don't know because: 1) I couldn't leave it on very long as it pressed too hard on and around my eyes. If I loosened it, it was not touching the area I wanted it to touch. 2) I never used it again.
454481
not very long, probably about 20 minutes. However, the plus point is, its not frigid as ice packs would normally would be. its provides nice, cool therapy for your eyes without numbing it. i found it very helpful during migraines.
1779001
If you preheat the mug with hot water for a few minutes it will last up to 5 hours hot. If you put it in the freezer for a few minutes it will keep things cold for up to 7 hours as advertised. Be sure and use the open and close valve. This cup has a small bottom to accommodate cup holders in cars. It does tip over easily. I love mine.
1090485
Currently using it the required 20minutes following surgery but I would say it stays very cold about 45 min. Very moldable.
26453
The wrap stays cold for 20 to 30+ minutes. It is usually so cold when I first put it on that I put on yoga pants so that I have a layer between my leg and the wrap.
813621
I'd say 4-6 hours. I love it. It also keeps drinks warm, it's our number 1 travel cup we use in this house. Whether filled with coffee, tea or water. Works great. Also, keeps ice in tact for hours.
295160
I have only used as cold and it is so comfortable. Cold last 20 to 30 minutes and it just sits so nicely I do not mind it at all.
2049292
yes..... I have left it in my car for up to 2 hours not wanting to carry it while biking or skating and it still hold the cold very good.
777560
It stays longer than 15 minutes. If you keep it in the freezer over night, it will stay frozen all day.
981896
At least six hours. I fill mine up about 1/4 put in the freezer when it gets frozen I put cold water over the frozen ice and it will stay cold 8 to 10 hours or longer. I love mine.
981724
I have used it twice for the same purpose as you state and it was cold 24 hrs later. Keep in mind the tempature of where you are using it will determine how long it keeps cold. I used it for a plane trip across country.
2181934
I have never use the product within 5-6 hours of use, but I would say that it probably takes about 2-3 hours to get "completely" cold again
1866255
It's not really insulated, I would say it could keep it warm for 30 minutes to an hour maybe.
343910
I did not test it for twelve hours. The longest I tested it was about 3 hours, and the car battery was not drained. Everything in the cooler was still cold.
296850
About 45 minutes and it will be cold again. For it to be completely refrozen a couple of hours. Having two allows you to alternate them without having to wait. I have three.
91981
If you have a cold pack underneath, it stays pretty cold. I don't think it keeps it cold on it's own.
1205461
I believe 4-nice and big,well made,cold only lasts for approx. 10 minutes though. Check out the Donjoy Ice system.
296848
It gets cold very quickly, 20 minutes will do but it doesn't stay cold for very long. I've found the best time window is 2 hours in the freezer. I love this ice pack!