Even here in North Dakota, it can get extremely hot but even on chilly days, I take upwards of a gallon of ice water with me on the field. Last night did 4 games behind the plate (2 under the lights) but it was very warm and somewhat muggy and when I got home, there was very little of that gallon of water still in the jug. I was taking a few swallows after every inning and sometimes between batters. Still got done with 4 games in less than 4 hours. I love the 1 - 1 count!
