B-Armor, One Sided Tongue, & B-Ridge Technology
B-Armor - covering the front upper part with KPU material of high stiffness. It cushions the forefoot and protects from rapid movements
One-Sided Shoe Tongue - connecting only the inside part of the shoe tongue, preventing undesired movements and enhances the feeling of a perfect fit
B-Ridge - bridge-shaped middle sole supports sliding motion during footwork