Alphacool 7V Rechargeable Circulatory Cooling Vest 3L Bladder Mini Pump Summer

Very impressed, so far so good, with the florida heat these are definitely a life saver. With the bladder to the full line I personally find them a bit to heavy to be comfortable in our industry which involves going up and down ladders on roofs etc, but filled about 2/3rds of the way I find the weight better and more comfortable. So far very few complaints, as I type this Im wearing it it's about 95 degrees I started the day with a frozen bladder and I'm going on about 2 1/2 hours. We purchased one for everyone on my crew and everyone seems to like them. Personally im about 20lbs over weight so sometimes I just leave it unzipped in the front and it still cools me well.

It will keep your torso cool, but will not stop sweating. Good for working comfortable in the heat. I use it for construction work, I work outside all day. You will have to fill bladder around 3 times a day to keep vest running efficiently.

Let me start by saying I'm a firm believer in happy wife, happy life, and my wife can't take the heat but we live in AZ. There are a few things that can't be helped, like the ice not lasting, but if you freeze the bag with 3 liters in it, it will last quite some time, however, I also know that takes a day or more for a freezer to do. The 2nd thing, is wear something over top of the vest so hot air is not warming all the water out of the bag. My wife wore it for 8 hours, and changed in the middle of the summer here in 117°F heat and it was cold the whole time. She even had to turn it off a few times as she was getting too cold. So awesome!

The battery easily lasts several days of use, 2-3 hours a day, however the ice reservoir does not. In warmer weather or high activity, the ice melts in under an hour, and is warm to the touch within 2 hours.