Question: what are the most ethical fabrics?
Answer: Linen. Linen is a natural fibre, and one that has been used in clothes making for thousands of years. ... 
Organic Cotton. ... 
Denim. ... 
Peace Silk. ... 
Wool & Cashmere. ... 
Recycled Nylon (aka Econyl) ... 
Bamboo / Lyocell / Modal / Tencel / Rayon / Viscose. ... 
Hemp.