This gi fits quite small. I bought an F2 @ 5'4" and 115-120 lbs. The arms are really long and had to be shrunk, but everything else was quite small. I'm at the bottom of the size chart for this size, so I was very surprised. It is beautiful and I love how it looks and feels, but the sizing is absurd.
I am 163 cm (5'4") tall and weigh 52-54 kg (115 - 120 lbs). I bought this in F1 and it is incredibly small, nice wide sleeves though. Since I'm within the weight for the gi I was expecting a better fit. It really is a beautiful gi and I have returned it for an F2.