The Cleveland CG Red irons have combined Gelback Technology and next generation Micro-Cavity Technology (MCT) to offer better players increased benefits in the areas of feel, forgiveness and fit. The CG Red irons differ from the CG Gold as they have a classic 'player profile' that low handicappers and tour players prefer. Cleveland Golf's newly patented Gelback Technology consists of a lightweight, visco-elastic, vibration-dampening material, which is placed directly behind the hitting area of the clubface in the back cavity of the iron. Gelback is vibration-tuned to remove unwanted vibration on miss-hits while still allowing the player the necessary feedback from the clubhead's soft yet responsive feel. The superior I-beam structural design of this next generation of MCT helps provide the highest strength possible to the topline of the Cleveland CG Red irons. The stiffer topline allows the face to remain undistorted and square through impact for more consistent and accurate shots. Impact vibration waves are also shortened by MCT, thus giving these irons a much more solid feel compared to traditional iron designs. This latest version of MCT not only provides added stability and forgiveness but also allows these irons to boast a 15% increase in their centre of gravity (CG). This improved CG has been achieved by redistributing 10 grams of weight to lower and deeper locations on the clubhead. The Cleveland CG Red irons can be furthered dialled-in using colour-coded hosel markings that denote if the irons' lie angle are flat, standard or upright.