ASICS NETBURNER BALLISTIC FF 3 Experience effortless movement and quick starts with the Asics NETBURNER BALLISTIC FF 3 men's indoor trainers, crafted with precision for optimal performance. 3D SPACE CONSTRUCTION™ and X GUIDANCE™ technologies help increase the flexibility of the shoe. TWISTRUSS™ technology in the midsole provides better stability. This prevents unnecessary loss of energy and quickness. ASICS NETBURNER BALLISTIC FF 3