Isospeed Strings

This co-polyester is a great option for the big hitters who want a degree of control, spin and durability without sacrificing comfort.

A soft multifilament string with good dampening and a slightly muted feel. A great choice for players seeking power and comfort.

Constructed of a blend of polyolefins - the same material used in the base of snow ski construction. Pre-stretched in unique mini-reel form. Similar benefits of multifilament nylon strings with good dampening and a slightly muted feel.

This pre-stretched polypropylen string is designed to give the feel and playability of natural gut. Offers nice comfort and power.

This co-poly offers big hitters a high level of precision along with impressive comfort for a durable control string.

ISOSPEED Black Fire S 17 String (1.25) offers precision and power with advanced materials, optimal for control and spin. Its 17-gauge thickness ensures responsiveness and durability, perfect for competitive play. The sleek black design adds style to your racket.

This thin co-polyester string has huge spin potential and exceptional control. It also has above average comfort for a poly-based monofilament. 

A firm, low powered polyester with exceptional control and surprising comfort. Best suited to big hitters in search of maximum precision.

A firm, low powered polyester with exceptional control and surprising comfort. Best suited to big hitters in search of maximum precision.

A somewhat lively control string with great spin. Best suited to strong intermediate through advanced level players. Very thin for a better grip on the ball.

This comfortably firm co-poly rewards full swings with an impressive level of spin and precision. Also has decent pop for a control string.

Pre-stretched filament technology. High marks for tension maintenance with good durability. A popular choice for players using larger-oversize racquets.

Retains all the characteristics of Iso-Speed Control 16 but offers an option to players seeking additional "pop"and/or spin enhancement. Good durability in a 17 gauge string.

Using a heat-seal to increase durability and a pre-stretched multifilament layer for minimization of tension loss, Professional offers a gut-like feel.

A firm, low powered polyester with exceptional control and surprising comfort. Best suited to big hitters in search of maximum precision.

This pre-stretched polypropylen string is designed to give the feel and playability of natural gut. Offers nice comfort and power.

Combining gauge thickness along with a rigid processing, the Baseline Long Life provides good control with lasting durability.

This polyester string has phenomenal control and durability! A great option for big hitters who want a string that will allow them to attack the ball.