Size Chart for Kids: Small (110): Chest 24.8in/63cm, Waist 23.2 in/59 cm, Suggested Height 39.3-43.3in/100-110cm, Suggest Age: 3-4 yrs Medium (120): Chest 26.4in/67cm, Waist 24.8in/63cm, Suggested Height 43.3-47.2 in/110-120 cm, Suggest Age: 5-6 yrs Large (130): Chest 28in/71cm, Waist 26.4in/67cm, Suggested Height 47.2-51.2in/120-130cm, Suggest Age: 7-8 yrs X-Large (140): Chest 29.5in/75cm, Waist 28in/71cm, Suggested Height 51.2-55.1in/130-140cm, Suggest Age: 9-10 yrs XX-Large (150): Chest 31.1in/79cm, Waist 29.5in/75cm, Suggested Height 55.1-59.1in/140-150cm, Suggest Age: 11-12 yrs Note: Dimensions are measured by hand, may be 1-3 cm deviations. Please refer your own size carefully with our size details. Color may slightly different due to the color calibration of your monitor.