I am a Harley HOG rider in Florida
The vest is great. Turn a challenging hot ride into a much more comfortable ride in 90 degree weather.
If you soak it good for 10 minutes it often will stay cool for 3 hours at highway speeds
look good in black
I was very disappointed in the Iceburg vest. The only time I felt it cool me was when I took it off. I used a mesh jacket, then a long sleeve tee-shirt but neither way did it help cool me.
It may be the fairing of the motorcycle does not let enough air circulation. Bottom line is I wasted my money on it.
I bought this vest for use both on the moto and mountain bike. It does work as advertised as long as there is sufficient air flow. So, it works better during a moto than a slow climb on a mountain bike.
Also, the vest gains considerable weight when soaked and feels "wet" when wearing. This is not a bad tradeoff per se IF the outside temperature is hot.
The other caveat on this vest that took me time to adjust to was that you feel a little "trapped" in it. It doesn't breathe well compared to a jersey for example.
So, if you're willing to accept these shortcomings, you'll be happy. I have used it in hot 90+ degree temperatures and it made riding bearable.