Unique 46++ Acoustic Base Guitar Case. You'll receive email and feed alerts when new items arrive. Cahaya 41 inch acoustic guitar bag 0.35 inch thick padding waterproof dual adjustable shoulder strap guitar case gig bag with back hanger loop, black. Since acoustic guitars are fragile, soft gig bags are out of the question. These select acoustic guitar cases will give you one less thing to worry about when traveling with your precious instrument.