Alternative Materials: 

• German microbiology student Anke Domaske used milk to make a an "Eco Milk Fiber" called QMilch. 

• High-tech sports clothing company uses recycled coffee beans for their Stay Warm line of cold-weather performance apparel.

• Suzanne Lee, fashion designer and TED Senior Fellow, has been making fabric and vegetable leather made of fermented tea named kombucha.

• Plastic Bags and Beer Bottles Finding New Life. Polyester is a fabric made of plastic materials. Apparel today are not totally made of one fabric such as cotton, because it is too expensive and harmfull to the environment, so there are mixes, such as Cotton-Polyester in which there is more cotton than polyeste helping to recycle some plastic products.

Alternative Dye Process: 

• Developed in California by Colorep, AirDye works with a heat-transferred from paper to fabric in a one-step process. This can save almost 75 gallons of water in the dying of a pound of fabric, save energy, and produces no harmful chemics. The technology uses 85 percent less energy then traditional dying methods.

• Digital Printing, colors and patterns are dyed in fabrics such as printing on paper, reducing water usage by 95 percent, energy reduction of 75 percent, and minimizing textile waste. 

• Bio-Filtering Wastewater.The process helps remove the most toxic textile dyes components. Unlike traditional biological systems, this innovative treatment filter relies on microorganisms growing in aggregates.The wastewater is poured over the microorganisms, which process pollutants, and each aggregate holds up to 10 times more microorganisms than traditional technologies, and produces 80 percent less sludge than conventional biological filters

Finally there are some stamps that certificates that their clothes are Eco-Friendly some of them are Follow the Frog, GeenPeace, Made in Green, etc. In conclution is a competitive advantage to be Eco-Friendly because buyers search for green certificated products.