Among the rising generation of consumers, green is the new black. The trend in eco-conscious clothing has exploded in recent years, and most designers use one thing in common: organic cottons. They're a bit more expensive, but well worth it. Conventionally grown cotton accounts for approximately 25 percent of the insecticides and 10 percent of the pesticides used worldwide. Below is a roundup of some of the best sustainable apparel lines on the market—from boutique t-shirt and jeans designers to high-end ecoglamour.