Packaging industry

thumb|Classic Sigg bottle|209x209px thumb|351x351px|Sigg bottle made of Stainless Steel. Sigg Switzerland AG is a Swiss manufacturing company with its headquarters in Frauenfeld. Sigg bottles are bottles designed and manufactured in Switzerland from aluminum and polypropylene or in China from stainless steel and glass. The company is famous because of the iconic shape of its classic bottle and numerous designs which have led to its addition to the permanent design collection of the New York Museum of Modern Art.