For 4/4 cellos 28 mm Padding: 10 mm High density foam +10 mm Density foam + 5 mm Soft foam + 3 mm Soft plush Water resistant Jacquard bicolour material which has been stitched to a high quality Incorporated reflectors for road safety All round webbed piping for optimum shock absorption Imitation leather band application Suspension device Convenient luggage style handle Durable, adjustable fold-away backpack straps Ergonomic back support Carrying handle on the back Large A4 exterior pocket for sheet music or accessories as well as additional external compartments Two additional padded handles on the front