Bamboo: thermo-dynamics will cool you or warm you, depending on the need. It is a natural sun screen, protecting you from UV rays. Bamboo clothing is anti-microbial, which means fewer washes, and a cleaner you.

Organic Cotton: more structure and stability than its friend bamboo. Ingenius farming methods allow the cotton to be harvested in a way that is beneficial to the soil, the animals, and the eco-system. Harsh chemicals and toxins are out of the picture. Sweat shops and slave labor are out of the picture. Pretty nice picture, come to think of it.