I recently visited the Tailoring Philadelphia Exhibit at the Philadelphia Art Museam.
These are only a few of the garments in the exhibit but have a central theme of detachable elements of the design. The only thing I have seen in fashion today with a detachable element of design are those tacky cargo pants that can be unzipped into even tackier shorts. The way Toscani and Larson incorporate the detachable element of design into their garments is so incredibly elegant and seamless it is a wonder why this design element never really caught on.
If you enjoyed these garments as much as I did and would like me to post more photos from this exhibit let me know!