draft2go Icepack Set
Without electricity in only three hours to drinking temperature
The icepack set is used when there is no possibility of cooling the KEG down in a refrigerator for 24 hours prior to use and no other method is available for keeping the KEG cool for longer periods before use. The Icepack Set consists of an ice sleeve, two ice packs and a cooler bag. At a room temperature of 22° C, the ice sleeve plus ice packs will cool the beverage down to 2,5°C - in only 3 hours!
You'll find the instruction here.