Proprietary CrossTECHT technology - offers the rigidity of a hard shell case, with the light-weight design of a soft bag, yet only 5lbs! Instrument Suspension - violin is cushioned and floating in the case, which offers interior protection that a hard shell case & soft bag cannot solely deliver! Superior Durability - premium nylon, water resistant, tour-quality hardware! Adjustability - can accommodate 1/2 size - 4/4 size violins + two bows! Comfortable padded straps included for back pack/shoulder strap travel use. Storage - fastening system holds shoulder rest securely in place! Interior and exterior pouches can hold music, tablets, rosin, strings, and many additional accessories. Value - includes a limited lifetime warranty! An investment that players of all levels can use for the protection of their instrument for years to come!