TITLE Boxing Club Killeen is the best and only authentic full-body boxing workout that changes your body, clears your mind, and completely engages your spirit. Our signature workout utilizes the fundamentals of a true boxerâ??s workout â?? including proper heavy bag training â?? to strengthen and tone your arms, legs, back, core, stamina, and your confidence. Empowering, exhilarating and totally addictive - this is your new favorite workout class. .