Hydrate Hydrate Hydrate.

Ever since I joined the military it is something that has been drilled into my head.
As mentioned before The arid air at these cons can dehydrate easily. Also as mentioned before drink lots of WATER.

Now to add a few things from a military perspective.
Energy drinks are BAD. They are a diuretic which only works faster to dehydrate you.
Soda. see above. also bad for this very reason.

Gatorade is something you should drink to Rehydrate and replenish. meaning its for after strenuous activities workouts etc. walking around is not strenuous.

Your probably thinking well Im in a fursuit and getting water in here is a challenge. Non suiters this will work for you too.

Look for something called a CAMELBAK. If I can fit this under my helmet and on my flak jacket you can surely fit it inside your fursuit.
Most sporting goods stores should have them and are well worth the money.
see examples.

They cost anywhere from 15 to 50 dollars.

You do not have to buy the camelbak brand there are off brands that are relatively cheaper. I will say this. Off brands will and do tend to leak.

however if you do not want to buy a camel back keep that bottle from the soda you just drank handy. or a canteen.

just a note DO NOT exceed more than 12 quarts of water per day. You can get water poisoning / intoxication also known as hyponatremia. Not only is this not fun but it can be fatal.

Hope this helps.

-Arashi