Naugahyde. Naugahyde is an American brand of artificial leather. Naugahyde is a composite of a knit fabric backing and polyvinyl chloride plastic coating. It was developed by United States Rubber Company, and is now manufactured and sold by Uniroyal Engineered Products, LLC, a privately held company.
Diuretics are substances that make you pee more, they make your body lose water. Beverages containing alcohol and caffeine are sort of accidental diuretics - that is, they're not drunk with the purpose of losing water but it happens anyway. Then there are substance that are taken with the explicit purpose of losing water.
Caffeine is a mild diuretic, meaning it causes a person to urinate (pee) more. Drinking a moderate amount of caffeine isn't likely to cause dehydration, but it's probably a good idea to stay away from too much caffeine in hot weather, during long workouts, or in other situations where you might sweat a lot.