Hi, I recently saw a Birkin in clemence, but I read that it may loose shape over time and become slouchy and fall over. I would not mind if it became soft, but I would want it to stand up and keep its "Birkin" shape while standing. Is this true? Is it better to wait for Togo leather? Does anyone have a clemence leather Birkin they have used for over a year and would like to comment on performance? Thank you and happy holidays!!