The brand is an eco friendly by nature of the materials they use. The undies are constructed from 75% pima cotton and 25% seacell (which is seaweed, yes that's right). The reasoning is the seaweed contains vitimins and minerals that can be absorbed into the body. Also that seaweed is a very renewable resource that like bamboo it can be replentinished easily. Which also doesn't cause undo burdon on eco-systems.
So if you're looking for another eco friendly option, go check out the new line! We hope to have more information on the line soon for you.