Road Trooper.com reviewed a BMW Cooling Vest made with HyperKewl fabric. This is what they had to say:
“And yes, the HyperKewl Cooling Vest most definitely does work! Once the temperature get’s up to 30°C my Celtic blood which is more used to northern climates starts to overheat and I get very uncomfortable, worse I get very tired very quickly. The Cooling Vest is “for me” one of the best bits of kit I’ve bought in a long time as it definitely lowers my upper body core temperature and 30°C + (86°F) becomes a pleasure again.
“Wearing the vest is like having AC in my jacket”
“in summer it’s invaluable for me”
Click here to read the full review.