You can put the hard case with NAHOK oboe single case cover. This bag has one fixed belt inside, is good for pet bottle.
NAHOK Musician Backpack [Hummingbird/wf] for Oboe Players Cream / Camel {Waterproof, Temperature Adjustment & Shock Absorb}
US$340.00
![Photo: NAHOK Musician Backpack [Hummingbird/wf] for Oboe Players Cream / Camel {Waterproof, Temperature Adjustment & Shock Absorb}](https://nahok-eng.ocnk.net/phone/data/nahok-eng/_/70726f647563742f32303231313230385f3338323765332e6a7067003330300000740023666666666666.jpg)