I bought an Ibanez AEGB24E acoustic bass, a thinline model. GREAT acoustic bass !! disclaimer - elsewhere, not at Thomann, needed one urgently. On the IBANEZ official website - this is the bag they recommend for this bass, model IABB540-BK. BAD CHOICE I made. 1. the dimensions don't fit (larger than advertised), bag is huge and my bass shakes inside it like hell . 2. the zipper doesn't open all the way , I have to pull hard the bass just to get it out of this bag. 3. - the worst one - the inner padding is not really a padding , it is a coarse plastic/whatever that already left scratches on my bass, after 2 weeks of use . So, choice is yours - if you care for your valuable acoustic bass and REALLY want it to be well protected - do yourself a favor, invest in a more serious bag or better hard-shell case. don't be tempted by the low cost of this low quality bag