I used this product during our spring training for Ironman Texas on some brutal, hot, long rides and brick workouts in the Texas Hill Country where I live and train. I really noticed the difference on the brick runs where I normally cramp up as it was mid to high 90's during the last 8 weeks of training. At Ironman Texas it was mid 90's with high humidity and I drank Ironman Perform almost exlusively during the run and was downing 2 cups at each station on the second half of the marathon. I had a personal best Ironman race and ran the entire marathon with the exception of jogging while drinking at the aid stations. I honestly think this drink with the extra sodium was the key to keeping the cramps away and my energy level high.
By South Texas Ironpeeps from San Antonio