This mesh pattern on the upper improves flexibility while helping your feet move more freely. It gives you the confidence to quickly counter your opponent's move or take the open shot. Circular knit upper improves airflow and provides a supportive foothold FF BLAST™ technology provides lightweight cushioning and a responsive rebound Underfoot cutouts provide excellent bounce OrthoLite™ X-30 sockliner provides soft step-in comfort Designed For Neutral/Underpronation Neutral Foot Type Normal size arches Push Off There is even distribution from the front of the foot. How your foot contacts the ground The foot lands on outside of the heel, then rolls inward (pronates) to absorb shock and support body weight. Underpronation Foot Type High arches Push Off The pressure is on smaller toes on outside of foot. How your foot contacts the ground The outer side of the heel hits the ground at an increased angle with little or no normal pronation, causing a large transmission of shock through the lower leg.