The S-shaped arch, Alkobassa's own double-arch design that also rounded the front and back of the sole. The head is a medium size for a sense of security and is strong enough to hit a little off-center. The bounce can be used to open and close the face for the best performance on a variety of lies. The back face is thicker around the hitting point for a milder, more stable feel. The soft-iron head with a black IP coating underneath gives the ball a unique soft hitting feel when it hits the face. Laser milling is used between the grooves. Longer contact time and more stable spin performance, and the ALCOVASSA's unique approach shot that stops at height without bouncing or stinginging is possible.