The A-Plus backpack will attach to any Bam Hightech case allowing you to bring all of your other stuff along with you while you carry your case. Then, when you only need the backpack, detach it and leave your instrument case in your locker, but continue to carry this rugged and comfortable backpack.
Note: the A-plus backpack does not carry your case, so you must already have backpack straps for your case. If you are looking for a case carrier, we recommend the Joey Case Carriers or the Cushy Deluxe Carry-all Backpacks.