Hello, according to the measurements you gave (105 cm height, 16 kg), we can offer two options: 5 Years Old (Height 61 cm): This size fits perfectly and looks more stylish, but its height may be at the limit for you. 6 Years Old (Height 66 cm): It will be longer in length, but the body may be a little wide. If you're aiming for a perfect fit and a stylish look, go for the 5-year-old size. And if you absolutely want to avoid a short length, the 6-year-old size is the way to go. The decision is yours."