Race temperature 21ºC / 70ºF. Using head cooling. No cool booster, just water.

I was testing CoreCooling in the 1/2 triathlon race and it works! My problem is that I do not adapt to heat that much and I overheat every race. I added water about every 1-2km and my average heart rate was 162, normally in these kind of races 168. Before this race my Personal Best was 1h 55min, now I could run 1h 42min. My feeling was much cooler, it helped me a lot. Thinking that I am going to buy the chest shirt as well.