Crossrock CRF1000BJNVBL Fiberglass Banjo Case, Fit For 5-sting Resonator, Backpack Style in Navy Blue 100% fiberglass exterior, extremely strong. Be tested to hold 600lb pressure at most. Arch-top design. 0.6 thick padding. 4.7 deep inside fit for most regular resonator banjos. Crossrock strong handle and high quality hardware. Integrated hygrometer. Large accessory compartment (10x4) with lid. Deluxe padded backpack straps. Be tested to be able to load 170lb pull at least.