The Yogasana Yoga Mats are hand-made in India by master weavers on manual looms using only cotton from preferred mills. They are colored with natural cotton dies and left to dry in the sun. No electrical power is used in the creation of the mat. They work especially beautifully outdoors (and of course indoors) have a 15-year warranty (but will last a lifetime) and are currently the World’s most Eco-friendly yoga mat!
There are seven colors total, which each correspond to a natural element. I personally like to use the blue/water mat as it soothes and gives my practice a sense of cooling. I also really enjoy using the brown earth mat, as it bestows a sense of groundedness when I am feeling “uprooted” from excessive travel.