Crystal Clear is a brand of still and sparkling natural mineral water from the mountain range of Knuckles in the central heartland of Sri Lanka. Crystal Clear is a brand of still and sparkling natural mineral water from the mountain range of Knuckles in the central heartland of Sri Lanka. Their bottles are manufactured of food grade virgin Poly Ethylene Terephthalate. The crystal looking bottle with better grip emphasis the brand name and the user-friendliness. The transparent label helps for the visibility of the product.