When it comes to hot yoga, you need to make sure the material of the leggings is very breathable and can dry nicely. You need to make sure while attending hot yoga and wearing these pants that you are able to not overheat while wearing them. Materials such as cotton are great at keeping the sweat in and keeping you cool as you attend a yoga class. Some ladies prefer shorts or even thinner leggings when it comes to hot yoga so make sure you can keep cool and not overheat.