Find your size (cm number = insole length)

  YXS YSM YMD YLG YXL
Chest ( CM ) 64 - 66 66 - 71 71 - 76 76 - 81 81 - 86
Waist ( CM ) 56 - 58 58 - 70 64 - 66 66 - 69 71 - 74
Height ( CM ) 122 - 127 127 - 137 137 - 149 149 - 160 160 - 170
Boy
  YXS YSM YMD YLG YXL
Chest ( Inches ) 25 - 26 26 - 27 27 - 29 29 - 31 31 - 32½
Waist ( Inches ) 23 - 24 24 - 25 25 - 27 27 - 28½ 28½ - 30
Hips ( Inches ) 26 - 27 27 - 28½ 28½ - 31 31 - 32½ 32½ - 34
Girl
  YXS YSM YMD YLG YXL
Chest ( Inches ) 25½ - 26½ 26½ - 28 28 - 30½ 30½ - 32 32 - 34
Waist ( Inches ) 23 - 24 24 - 24½ 24½ - 26½ 26½ - 28½ 28½ - 30
Hips ( Inches ) 27 - 28 28 - 29½ 29½ - 32½ 32½ - 34½ 34½ - 36½