Our 3K and 4K carbon fiber trombone cases. Inside material/padding is the same in both cases.

The 3K case is black. Tenor weighs 7.4 lbs and the bass 8 lbs empty.
The black bass travel case 11.2 lbs empty.

NEW Vegan leather tenor travel case weighs 10.5 lbs empty.
NEW Vegan leather bass travel case weighs 13 lbs empty.