An iconic natural gut string used by many ATP and WTA Tour pros. This one is premium grade. It possesses an unmatched combination of power, comfort and feel. Maintains playability remarkably well at higher tensions. VS Touch is not only great for top-level play, it provides nice power and an expanded sweetspot to beginners with compact strokes. It's also a great option for tendonitis sufferers in search of a softer response. As for hybrids, this is the perfect compliment to stiff polys. Thermogut Technology Finishing increases durability and resistance to humidity, according to Babolat. This natural gut comes with BT7 Technology, which is a layering structure designed to increase durability. Offers a slightly firmer feel, but remains the "Gold Standard" for comfort and playability.