The indoor NETBURNER BALLISTIC FF 3 shoe holds the foot perfectly so you can concentrate on the match. It is also ideal for fast starts. The combination of structure 3D SPACE CONSTRUCTION and X GUIDANCE technology enhances flexibility. TWISTRUSS technology in the outsole improves stability when pivoting or twisting. It helps maintain speed during and after changes of direction. FLYTEFOAM Propel cushioning technology improves shock absorption and responsiveness TWISTRUSS technology increases the speed and rapidity of transitions structure 3D SPACE CONSTRUCTION improves stability X GUIDANCE technology increases flexibility The solution dyeing process used to manufacture the insole reduces water consumption by around 33% and carbon emissions by around 45% compared with conventional dyeing methods.