ISOSPEED Control Classic 16 is an extremely unique multifilament string. Unlike the majority of multifilament strings, which consist of nylon filaments, ISOSPEED Control is constructed with polypropylene ribbons.  The result is one of the most comfortable strings on the market. Through a unique patented system, this string is factory pre-stretched and locked under tension on an industry-exclusive 40ft. reel. The result is optimal tension maintenance. Recommended to any player who requires high levels of comfort. 

Compared to ISOSPEED Control (the non-Classic version), this string is a tad softer and slightly more powerful

• Gauge: 16/1.30mm
• Length: 40ft/12m 
• Composition:  Multifilament (polypropylene ribbons)
• Color: Natural