The Wulf Kart suit for children helps your child stand out in the way. Soft inner lining, durable outer material for a comfortable yet durable product. Washable fabric means that the suit can always look best. Bright, vibrant designs help to highlight your child and find the style that suits them. Size Guide Junior XS 3-4 Years Inseam 38cm Waist (Stretched) 56cm Chest (Under Arm) 60cm Arm (Internal) 30cm Arm (External) 34cm Junior Small - 5-6 Years Inside Leg Length 41cm Waist (Stretched) 60cm Chest (Under Arm) 64cm Arm (Internal) 3: 1 cm, Arm ( External:31cm, Arm (Outer):31cm, Arm (Outer):37cm Junior Medium - 7-8 Years, Inside Leg Length:46cm, Waist (Stretched): 70cm, Chest (Under Arm): 70cm, Arm (Internal): 35cm, Arm (External): 41cm, Junior Large - 9-10 Years, Inside Leg Length:53cm, Waist (Stretched 73 cm Chest (under arm): 74 cm, Arm (inside): 38 cm, Arm (outside): 46 cm, Junior X-Large - 11111 cm. -12 Years Inside Leg Length 23.2" Waist (Stretched) 30.9" Chest (Under Arm) 32.2" Arm (Internal) 18.1" Arm (Outer) 21.8"