Heys Luggage Cruzer 3 Lite Hard-Sided Bag, Silver, One Size Made from a polycarbonate composite, with a scratch resistant diamond finish, it is both durable and flexible so that when under stress, it flexes to absorb the impact and then returns back to its original shape. polycarbonate is the same material used to manufacture bulletproof glass Expandable for up to 25% additional packing capacity Four protective corner shells provide a sophisticated look- adding to overall durability Sleek, modern designed telescopic handle system curves for additional packing space and slides into its own compartment which does not interfere with the interior Fully lined with a multi-use organizational pocket for ease of packing that also doubles as a divider. tie down straps provide additional support for your clothing during travel