Sorry if I shouldn't be reviewing a product again, but it's a great invention. If my post needs to be deleted - please proceed HyperKewl review by Chef I was looking around for summer gear and came across the HyperKewl cooling vest. It claims to keep you cool for 5 - 10 hours just by soaking it in water for 5 - 15 mins, wringing out the excess. Of course, I was skeptical at first, but I thought anything that might keep me from baking in the sun has to be worth a go. I bought one off ebay, soaked it as per instruction, chucked it on under my armoured jacket - and I had an *OMG* moment - I didn't feel hot in the 35c heat we experienced in the west (Sydney) recently. Sitting in stationary traffic for 10 minutes did not worry me but my arms suffered a bit. In my haste I did not see the vest that is specifically made for motorcycle riders... so I'll be getting this one too. My clothing did not get wet (minor dampness on my jacket - nothing on my tshirt), and my skin was cool to the touch when I got home. I guess if you do alot of travelling, or find yourself sitting in traffic alot, this might be worth buying. Wimpy? Maybe. Worth it? Definately.