Have you guys seen Zuca bags? (very large though)
Or Just Stow It bags and rucksacks? (perfect for fly tying)
Zuca bags are used by makeup artists
Just Stow It, usually used by painting artists on the move.
They're nylon bags with loads of compartments.
Zuca bags come on wheels as well.
I do a lot of travelling, in an out of hotels so like to take a little kit with me.
I own a Just Stow It Martin Martin.
I take several capes, flexi floss' dubbing, hooks with me away in the week.
It can fit a load of stuff into it TBH
Martin Martin Just Stow-it Double Tool Bag | eBay