Boys Tshirt Design Artwork Printkids Tshirt Stock Vector (Royalty Free t shirt design for boys Kids tshirt designs, Tshirt designs, Shirt Boy's T Shirt t shirt designs for boys 7814250210 Boys clothes patterns, Kid's Boy T Shirt Design Bundle Graphic by T Shirt Design Bundle Creative. 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) 134 9Y 67 59 72 62 140 10Y 70 61 75 65. 5 146 11Y 73 63 78 69 152 12Y 76 65 81 72. 5 158 13Y 79 67 84 75 164 14Y 82 69 87 78. 5 170 14+Y 85 71 90 82 176 14+Y 88 73 93 85