Crossrock Classical Guitar Case, Lightweight 6.6lb Carbon Fiber Backpack Case Fits to 4/4 Full Size Classical Guitar, Black Ultra strong and lightweight carbon fiber exterior. Extremely thick padding with premium blue velvet lining fits your guitar snugly. Heavy duty hardware includes reinforced metal latches and TSA lock. Integrated hygrometer helps you monitor the humidity inside easily. Detachable padded backpack straps and compatible cover.