Hot Launch C523 Wedge Hot Launch C523 wedges combine maximum distance and forgiveness in a traditional cavity back design. The C523 Irons are made from extremely soft 431 stainless steel, providing superior feel and performance. FEATURES VIBRCOR TECHNOLOGY VIBRCOR is a high-grade TPU strategically placed in the deep undercut pocket to create a new speedinducing and feel-enhancing internal technology. VIBRCOR creates a distinct feel of the clubhead at impact that dampens sound and shock, while al