SFX Upper : One piece construction with a very breathable grill mesh.

Toe Box Rubber Shield : The toe bumper piece offers great durability of the upper on the mid and forefoot thanks to a durable rubber compound.

SFX Insole : As confortable when you first slip into them as they are while you're playing in them thanks to the multi-layer Ergo Motion insole.

Kompressor : High-performance shock absorption thanks to the TPR (Thermo Plastic Rubber) tube compressing system.

Active Flexion(Technology developed and patented by Babolat) : Shape and makeup of the materials used address 9 key pressure points for maximum responsiveness.

Michelin DIN 35 : International rubber test standard based on mass loss measurement. So DIN 35 is the intermediate durable formulation.

High DIN Index : low performance

Low DIN Index : high performance