Cotton
The Con: Cotton can use a lot of water to grow, but it really depends on which region of the world it’s grown in.
The Pros: Cotton is a natural fiber that doesn’t need a ton of chemical processing, and it has a lower impact on climate change (read: less CO2 emitted) than most other common fibers.
WHEN YOU SAY “ETHICAL”...
In this case, we mean: Garment workers were paid a fair wage for fair working hours. Factories don’t allow child labor, forced labor, or unsafe working conditions.