Europe Size 104 to US: 3-6M

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: 3-6M: Corresponds to a height baseline of 62 $\text{cm}$ (24.4 $\text{in}$), a weight baseline of 6.5 $\text{kg}$ (14.3 $\text{lbs}$), and a chest baseline of 44 $\text{cm}$ (17.3 $\text{in}$).