To prevent hands and feet slipping during asana practice, yoga mats are used as a kind of aid. These mats are also known as non slip mats,non skit mats or sticky mats. In the ancient time yoga practice in India was done on grass or on the hard earth without any cover or on the rugs of dear or tiger. With yoga introduction in west, people used towels or cotton mats on wooden floors but they got failed because they sli...