Crossrock CRF1000CBK Fiberglass Classical Guitar Case Hardshell- Backpack Style for 4/4 Full Size in Black 100% purity fiberglass arch-top exterior. Can hold 400lb pressure. 6 latches and thick rubber strip seal ensures the super security and waterproofness of the case. Thick padded (0.8" at least) inside with velvet lining. An addidtional bottom pad for inside customizing. Large accessory compartment (0.55"x0.35") with lid. Integrated hygrometer and Crossrock Leather comfortable handle. Deluxe detachable backpack straps. (Can load 170lb pull)