Sizing Charts:

Gymboree has changed its sizing over the years... 

sizes small - xxlarge

click here

2004 - includes sizes up to 9

click here 

includes size 10,12

click here 

2005 - Updated size 10,12

click here

Size 5T in Toddlers and sizes up to 12

click here

2006 - Size slim/plus new size 10/12 girls and boys size 8

click here

2007 - Includes Pets, Boys 10 and the Slim sizing changed just a little.

click here

2010 - size 12 for both boys and girls

click here