These are the flexible sizes for respective age group as per mentioned in CM Size Increase Approx Age Chest (CM) Waist (CM) Hips (CM) Inside Leg Length (CM) 116 6Y 60 55 63 50 122 7Y 62 56 66 55 128 8Y 64 57 69 58.5 134 9Y 67 59 72 62 140 10Y 70 61 75 65.5 146 11Y 73 63 78 69 164 14Y 82 69 87 78.5 170 14 85 71 90 82