XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

12M (9-12 mo) 18M (12-18 mo) 24M (18-24 mo)

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: chest 31.5-35in S: chest 35-37.5in M: chest 37.5-41in L: chest 41-44in XL: chest 44-48.5in XXL: chest 48.5-53.5in 3XL: chest 53.5-58in 4XL: chest 58-63in 5XL: chest 63-68in

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: chest 31.5-35in S: chest 35-37.5in M: chest 37.5-41in L: chest 41-44in XL: chest 44-48.5in XXL: chest 48.5-53.5in 3XL: chest 53.5-58in 4XL: chest 58-63in 5XL: chest 63-68in

XS: chest 31.5-35in S: chest 35-37.5in M: chest 37.5-41in L: chest 41-44in XL: chest 44-48.5in XXL: chest 48.5-53.5in 3XL: chest 53.5-58in 4XL: chest 58-63in 5XL: chest 63-68in

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: bust 29.5-32.5in S: bust 32.5-35.5in M: bust 35.5-38in L: bust 38-41in XL: bust 41-44.5in XXL: bust 44.5-48.5in 3XL: bust 53-57in 4XL: bust 57-61in

XS: chest 31.5-35in S: chest 35-37.5in M: chest 37.5-41in L: chest 41-44in XL: chest 44-48.5in XXL: chest 48.5-53.5in 3XL: chest 53.5-58in 4XL: chest 58-63in 5XL: chest 63-68in

S (Age 8-10) M (Age 10-12) L (Age 12-13) XL (Age 13-15)

XS: chest 31.5-35in S: chest 35-37.5in M: chest 37.5-41in L: chest 41-44in XL: chest 44-48.5in XXL: chest 48.5-53.5in 3XL: chest 53.5-58in 4XL: chest 58-63in 5XL: chest 63-68in