SIZE CHART:  
SIZE 4 (110): Fit Height 3'3”-3'7”; Weight 33-37 lbs; ca. Age: 4-5 yrs;
SIZE 6 (120): Fit Height 3'7”-4'; Weight 37-47 lbs; ca. Age: 5-6 yrs;
SIZE 8 (130): Fit Height 4'-4'3”; Weight 47-58 lbs; ca. Age: 7-8 yrs; 
SIZE 10 (140): Fit Height 4'3”-4'7”; Weight 58-77 lbs; ca. Age: 9-10 yrs;
SIZE 12 (150): Fit Height 4'7”-5'; Weight 77-88 lbs; ca. Age: 11-12 yrs;
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PURCHASING NOTICE:
1. About Size: Size Chart is for reference only. Please don't choose the size just based on the children's AGE. In order to get a right size, you'd better measure his HEIGHT and WEIGHT first. Choose a larger size if your child is stronger than normal.
2. About Color: The picture shows the real items without any special processing. But color and brightness may differ a little due to different camera, computer monitors, light environment or other factors.
3. About Quality and Service: Every reviews made us better- We listen to customer feedback and fine-tune every detail to ensure quality, fit, and comfort. If you have any problems, please feel free to contact with us. Please take a moment to rate the product after you received. Thank you! Have a nice shopping!