KA1303 Features: * Protective and insulative polyfoam lightweight foam * 1200D Nylon Exterior * Reinforced interior with plush lining * Ergonomic backpack straps * Heavy duty shoulder strap on Flute and Clarinet models * Multi pocket exterior design with additional storage compartments on the inside of the case (pockets and compartments vary slightly by case) * Ergonomic plastic bolted handle * Luggage grade small format self-correcting zippers - to better navigate the curvature of the case Construction: * Heavy-duty polyfoam construction - strong but lightweight