Tights Blue Gray Set of 2 CC CHB2513512 00These are the flexible sizes for respective age group as per mentioned in CM Size Age Chest (CM) Waist (CM) Hips (CM) Inside Leg Length (CM) 92 2Y 52 51 54 36. 5 98 3Y 54 52 56 40 104 4Y 56 53 58 43. 5 110 5Y 58 54 60 47 116 6Y 60 55 63 50 122 7Y 62 56 66 55 128 8Y 64 57 69 58. 5 134 9Y 67 59 72 62 Non slip tights for a boy: in the set: 2 pcs. ABS rubber parts Material and technologies: 78% cotton, 20% polyamide, 2% elastane Oeko Tex Standard 100