Wilson Steam 99S

The Tech
Fewer cross strings (15 compared with the customary 19) give the 11.3-ounce racquet's main vertical strings faster snap-back and the ball more RPMs.

Leach's Take
"The string pattern gives you a massive amount of spin – sometimes too much. It's best for those with a great western forehand." [$220; wilson.com]

Best For
Adding spin.