U Type is the organizer sides go inward so it doesn't touch bag side which means it does not leave any indentation in your bag and Cavier version must
(3-69/ CHA-Classic-NEW-Mini) Bag Organizer for CHA Classic New Mini (20cm) Flap Handbag
3-82/ CHA-Classic-S-F) Bag Organizer for CHA Classic Small (W23cm
Neverfull GM MM PM Organizer w/ Detachable Zipper Bag Tote
My Favorite Bag Organizer and One So Poorly Made, I Will Never Buy
** HIGH QUALITY FELT ORGANIZER (Water repellent finish on 2mm only / Stain resistant finish on 2mm & 1.2mm) ** *2mm thick felt is the most standard
(3-82/ CHA-Classic-S-F) Bag Organizer for CHA Classic Small (W23cm) Flap Bag : F-Type
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My Favorite Bag Organizer and One So Poorly Made, I Will Never Buy
U Type is the organizer sides go inward so it doesn't touch bag side which means it does not leave any indentation in your bag and Cavier version must
(3-69/ CHA-Classic-NEW-Mini) Bag Organizer for CHA Classic New Mini (20cm) Flap Handbag
Samorga Organizer, Page 71