I've just been recently transferred to the local sort which runs from 5:30ish to 9pm at night. I've worked a preload and midnight sort previously and I'm really struggling with the hot sun on this new sort. The package cars and feeders get so hot I could just dehydrate myself by standing in them. What are others doing in hot locals like Texas, FL and Southern CA to stay cool. I am in the northeast and I know its no where near as hot as AZ. I try to drink plenty of liquids throughout the day, I keep a Iced thermos with me and a gatorade while I unload. I use the ice water to dump on my head and drink the gatorade and some water for liquids. I've even filled up one of those backpacks with the water hose coming out of them with gatorade to unload with. But it seems like I am on the verge of heat exhaustion by the end of the night. I have to take two Advils after the sort to to get rid of my headache caused by the hear. Is this something I just need to get used too? Or am I just being a wimp?