Ergodyne Chill-Its 6665 Evaporative Cooling Vest

This vest works like it says - by evaporative cooling. This makes it great for any situation where there's a breeze; otherwise it will feel wet and clammy if you're just standing around with no wind. Very effective when riding a motorcycle - it saved me through 6hr of 112 deg heat in the southwest. As for size - I take XL shirts but the XL vest was loose over my t-shirt so I'd say it runs large. I still wear a vented jacket over it which keeps it in contact with my skin and works as designed. Very light weight and comfortable and the price is right for something you are going to wear occasionally.

Let me start with the fit. I'm 5'10", 155 lbs, 40" chest, male, and ordered a medium, and that's a good fit. It's got breathing room, but not too big. Now for the performance. I've been on two rides since purchasing. First day was an hour long ride at 95 degrees fahrenheit, high humidity, 2 lane highway speeds for about an hour. Was also wearing full face helmet, denim jeans, leather vest. I definitely stayed cooler than I would have without it. Second ride was at 100+ degrees, high humidity, freeway speeds for about two hours. Other safety gear was the same. Again, I stayed noticeably cooler than I would have without the evaporative vest. I did not fully saturate the vest, and it had just about dried at the two hour mark. The vest chafes just a bit around the neck, but it's not a problem, just an observation. Also, note that the vest works through evaporative cooling. This means that your torso will get wet. It also means that the vest will be noticeably heavier when wet. This should be expected... just sharing for folks who may not have considered this. Definitely will use again.

I recently purchased this Evaporative cooling vest and I'm really impressed with its performance. The quality is excellent, and it's very easy to use. I've been using it on and off for about a month, and it has consistently met my expectations. One of the standout features is the way it cools you down, while allitle heavy when it is full you can ring some of the water out and make it just perfect. It has made a significant difference in my experience of being out doors or riding my motorcycle, While there are a few areas where it could be improved, overall, I would highly recommend this product to others. The quality is very nice the Zipper works great. It's a great value for the price, and I'm glad I made the purchase. I've written several reviews on Amazon, and I try to be as detailed and helpful as possible for other shoppers in making informed decisions

I've had this vest for about 6 weeks, so it's seen a lot of 100 degree days. I use it just for commuting and sub-2 hour rides, as it loses it's effectiveness after that. I typically don't use it unless temps are well into the 90s. Does keep your core noticeably cooler for a while and only takes a few minutes to "activate". On the downside, to really work well as long as possible on really hot days, you really have to soak it. This makes it heavy, and your shirt underneath will get wet, as will the top of your pants or shorts, and probably your underwear as well. I find this an acceptable tradeoff to keep somewhat comfortable, but others may not. Evaporative vests like this supposedly work best in low humidity, so if you live where there's a "dry" heat, you may have better results. Sizing seems true, so make sure you get the size that provides you with a comfortably snug fit under your jacket to get the most benefit. It's also handy when running errands on hot days, since it helps keep you from overheating while walking around in stores with gear on. For the price and what it's designed to do, I think it's a good investment. The only reason I gave it just three stars is the construction quality concerns me, since there are a few areas with stitching flaws that look like they could cause trouble later on.

This just WORKS! By itself, it stays cool for a couple of hours. However, under a mesh motorcycle jacket, as long as it stays wet (and you're moving), it stays cool. Buy a lightweight dry-bag to store it overnight while on the road. I typically stop every few hours for fuel anyway. When I do, I drop the vest into its (reverse) dry-bag with some ice and water, and let it sit while I stretch my legs. Climbing back into it feels amazing (for hours)! It can initially feel heavy and a bit bulky, but sooo worth it. The gel cells do a good job of retaining the water, but some will inevitably leach onto your base layer clothing. While this might sound annoying (which it is) it is no worse than being soaked with your own sweat (which is somewhat inevitable).

I tried the vest and for the price I didn’t expect to much and I didn’t get it vest only stayed cool for about 30 minutes I work in a automotive shop in Houston I’m going for a good misting fan instead

This vest does what it is intended to do, keep you cold during super hot days while working in the scolding sun. However, while it is mentioned that the vest can be damp due to how you're supposed to make it cool, lords forbid it rains when you wear it. It will be like wearing a large sock over your clothes. You will be kept just warm enough to not keel over, but cold and wet enough to feel like a slimy foot in the winter. It also takes forever to dry once it has been absolutely drenched from the skies waves of fat rain. I've had mine hang above my bathtub in the hopes that it will be dry enough to put back on, but alas- That took days, to nearly a week of trying to hang dry it. Besides it's soggy nature, good vest. (Tldr, vest good, does its job, fear the rain.)

I used it to work in my yard & flowerbed. I saturate it in water, put on a sun hat and do what I want to do & not worry about heat stroke. Yes my clothing underneath is wet but the vest doesn’t drip, it’s wet from direct contact. Works well, suits my needs.