Europe Size 104 to US: 6-9M

Europe Size 104: Corresponds to a height baseline of 104 $\text{cm}$ (40.9 $\text{in}$), a weight baseline of 17 $\text{kg}$ (37.5 $\text{lbs}$), and a chest baseline of 59 $\text{cm}$ (23.2 $\text{in}$).

US: 6-9M: Corresponds to a height baseline of 68 $\text{cm}$ (26.8 $\text{in}$), a weight baseline of 8 $\text{kg}$ (17.6 $\text{lbs}$), and a chest baseline of 47 $\text{cm}$ (18.5 $\text{in}$).