Choosing eco-alternatives is more than just a fashion statement: It takes ⅓ pound of pesticides to grow the cotton for just one conventional T-shirt. Reduce your environmental impact with these fabrics.

1, 6 | Bamboo

Naturally absorbent and antimicrobial, bamboo fabric feels like cotton. This easy-on-the-planet grass can grow up to 4 feet a day without pesticides and produce 35 percent more oxygen than an equivalent stand of trees. Pictured: Of The Earth Malibu Sweater and Jewel Top

2 | Cotton

Cotton production accounts for only 3 percent of the world's agriculture but generates more than 25 percent of all insecticide use. Purchasing products made of organic cotton promotes pesticide-free cotton-farming techniques such as crop rotation. Pictured: Athleta Organic Suprana Rib Tank

3 | Recycled

To produce two extra-large polyester T-shirts from recycled soda bottles requires ½ gallon less gasoline than shirts made of virgin polyester. Plus, many recycled fabrics are also fully recyclable. Pictured: GoLite DriMove top

4 | Tencel

Made out of wood pulp harvested from sustainably farmed trees, Tencel's smooth, biodegradable fibers are stronger, softer, and more wrinkle resistant than cotton. In addition, chemicals used to break down the pulp are recycled. Pictured: Be Present Tree Tee

5 | Wool

Insulating, breathable wool is natural and renewable. New Zealand-bred merino sheep produce extrafine fibers, allowing for a sleek, lightweight fabric that wicks sweat from skin and keeps you warm like polypropylene does — minus the petrochemicals. Pictured: Icebreaker Flower Pods Cross Cami