Hmmm a Kelly relax or a Kelly flat the difference is well...... that the birkin and the Kelly are two different bags.two handle or top handle. the Kelly relax is a very very big almost over night style bag in the shape of a very loose Kelly the flat has no turn lock it has the size of a regular bag and a belt holds the front I'm not sure ........but it sounds by your description like a Kelly relax more than anything else .best. Birkel.