FZ towel grips are made by cotton. Cotton is an excellent material for absorbing sweat. However, they are VERY THICK and sometimes heavy. If you opt for a power play, towel grips might be awesome for you.. Many professional badminton players use this towel grip for enhanced sweat absorption. This excellent grip provides exceptional comfort while keeping the hand dry. Perfect for tennis, squash, badminton and racquetball racquets, hockey sticks, golf clubs and baseball bats - anywhere you need a firm grip.