I like the case that came with my Q Series bass trombone, but I don't really care for the backpack straps. They tend to be a bit tight and don't adjust enough to fix that. They also occasionally come undone since I have them maxed out. Does anyone know of any alternatives that allow more space in the strap and more security in the adjustment lock up?

Is it just the straps you are having problems with?

If so there are a couple of replacement shoulder straps that could work well for you.

<LINK_TEXT text="https://www.thomann.de/nl/brass_bags_ba ... JiEALw_wcB">https://www.thomann.de/nl/brass_bags_backpack_straps.htm?gad_source=1&gclid=Cj0KCQjwk6SwBhDPARIsAJ59GwcnzL8txwrybOu9hADwj5U-mwwj8wKcmvUosK7sUaSN60Uxvl1VU6YaAjJiEALw_wcB</LINK_TEXT>

These from Brassbags are the best shoulder straps ive ever had across all my cases. But it's also possible to visit a local travel bag store to find other shoulder straps that are more to your liking.

Good luck

Sam