Ventz | The Original Motorcycle Vents Cooling System, Ideal Biker Gift / Accessory

I usually need to test it well before I make a comment but as they fit my riding jacket very well and the principle is simple, I gave it full stars. I intend to use them on a trip to Spain next summer.

If you have tight jacket sleeves in hot weather these will let a nice draft inWorked well in 38 c heat on recent holiday

I've used them on a few bike rides now and they work really well chanelling air up the sleeves and across the back to keep you cool.

The idea is ok, the quality is very good, but it just doesn't work. If you bend just a little bit your arms the air flow is gone. And if you sweat the jacket is going to stuck into your arms which is also another obstacle for the air flow works properly. Cutting in short: you must to use a very loosing jacket and ride with your arms straight, which is not really possible on a motorcycle.