I own both BB in Epi and Speedy 25b. They both serve different purposes for me, and say both are suggested items. I recently added a waist bag (by Gucci), and also see how it was much needed in my inventory. I would think hard on selling bum bag unless it’s severely under used.
I think LV already discounted the bag but not sure!
Maybe on their 24s site it might appear again!
LINK