So the MaiTai insert that I ordered for my Lindy 26 arrived
The insert isn't made for the Lindy 26--instead, it's for the Birkin 25, but is listed as fitting the Lindy per customer feedback (
http://maitaicollection.com/collect...for-other-bags-and-styles?variant=16818992449). I let MaiTai know when I ordered that I wanted it for the Lindy and she warned me that the dimensions may be a bit off, but I figured I'd give it a shot anyhow. There wasn't much information I could find about inserts for the Lindy 26 (and MaiTai's sounded like it might fit the bill--not too stiff, nice construction, etc). The insert is beautifully made, lightweight, and came very nicely packaged. It is not, however, a great fit for the Lindy in my opinion. It fits inside, but is much smaller than the bag (see picture). In addition, the bottom is stiffer than I expected--while the Lindy can still fold, I have to kind of "encourage" it a bit to get it to.
I want to emphasize that I think very highly of MaiTai and the insert--I have no complaints about the quality of the product. It just isn't the best fit for my Lindy. I have ordered the Samorga to try out, and will report back if that works out better.