I think you should try on B35 also if you haven't already. I think Birkin is easier for this kind of use. )))) Good luck!
If I’ve done the conversion right to feet you are around 5’6”. I think a B35 would be great for you. The B40 might be a bit large.
Do you happen to have a friend who has a B35 for you to try on? That would make a world of difference in your decision making process.
B40. K35 will look like a purse. I have similar built like you and I have lakis 35. It is ok, but not too great....If I hand-carry it, it is feminine. If i shoulder carry it, it is better. Hope this helps.
ThanksI have merged two of @TOM75 similar threads together as they are both about his present predicament and search for a perfect size croc bag.