Yin and Yang, or Yin-Yang is a concept in Chinese philosophy used to describe how opposite or contrary forces are interconnected and dependent on each other in nature. Many natural opposites (such as light and dark, truth and lies, male and female, hot and cold, fire and water, high and low, life and death, good and evil) are thought of as physical manifestations of the yin-yang concept. Because the yin-yang represents so many dualities it has earned a place in popular american culture as well as many other cultures throughout the world as being a symbol of "Life". Our yin-yang hip flasks try and capture this intriguing design at it's very best. We can custom create and personalize hip flasks with just about any rendition of the yin-yang. And if you want the complete opposite of yin-yang, we have some scary zombie flasks as well!