This directly correlates with the previous question – your choice of the yoga mat has to be primarily dependent on your style of yoga. If you have already established that you will be mostly executing high-intensity movements, then a thin yoga mat is your best bet. It provides you with the closeness to the ground and allows you to feel more stabilized. If, however, you will not be moving a lot but rather meditating and restoring your inner energy source, a thick mat would suit you best. You should also keep in mind that the more cushioning the mat has, the more condescending it is to your joints. And, in case you are new to yoga and have not trained your knees to develop resilience, you might want to opt for a medium to thick type of mat.