The Gator Cases GL-TROMBONE-F Lightweight Trombone Case is compatible with both standard and F-attachment trombones. It features an interior plush covered EPS foam lining and a 600-Denier nylon lightweight exterior, which is reinforced with nylon webbing. It's equipped with a nylon accessory pocket and multiple mesh pockets. The handles are reinforced with padding and there's also a no-slip rubber shoulder pad. For added security and a better fit, the case even features adjustable elastic external tie downs.