I really like this oversized hoodie, this is so comfy and perfect just in time for winter.
I initially ordered XS size, and it was oversized enough around the torso and the sleeve length was about same as the length of my arms.
Actually as I prefer oversized hoodies that cover my hands completely, I exchanged it for S size, and this is absolutely perfect for me!
I'm 165 cm 50 kg, and I usually wear S size.
If you have same preference as mine, then sticking to your usual size or even going up one size might be a good idea.
The exchange process was also very smooth, and I was really impressed by their excellent customer service.