It even made jerseys for nine football teams competing in the World Cup when it was held in South Africa - using polyester recycled from plastic bottles.
Such clothes are lighter than the usual fabric and absorb sweat better, says Super Textile Corporation, one of the Taiwanese companies weaving shirts and sweaters out of bottles.
"The process also uses less water and energy - we simply use coloured bottles to avoid using dye," says Alex Lo, the company's managing director.