Second Service

The world's 1st string made from 100% recycled PET.


ISOSPEED is one of the world‘s leading manufacturers of premium synthetic tennis strings. As a seperate product line of ISOSPORT, which was founded in 1969 to manufacture materials for skiing and snowboarding, ISOSPEED has benefited from its many years of experience in manufacturing and post-processing synthetics. We started producing tennis strings in 1990 – right after we entered the market, the entire Austrian tennis elite began using ISOSPEED products for the competitive sport. The trend toward high-tech products has continued to this day and ISOSPEED now offers a complete line of unique strings that is known throughout the world. 

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