Pretty sweet! I use this for helicopter fire fighting. Keeps cool no matter the temperature outside. Quicklychills and and last at least 3 hrs. I typically only wear the the front ice pack while keeping the second ice pack chilled for the next flight.

[This review was collected as part of a promotion.] I really put this to the test, I at times have to work next to an oven that has a huge amount of 150 degree air blowing out of it. I on occasion need to do repairs and before using the vest, I would soak my shirt and in less than five minutes everything is completely dry. Wareing this vest I am not fatigued and suffering because of it . This vest even under those conditions kept my core temp down and made it possible to get more work done . The weight and bulky size had me worried when I first put it on as to how much would this hinder my abilities. Within minutes didn't notice for the most part and found that being cool and not sweating completely out waighed these concerns. The jacket with removable liners makes it possible to stay cool at all times. Also to regenerate the liners can be done quickly if you don't have an extra set of liners swap.