A lot bigger than it really needs to be (the glasses themselves will fit into the small metal (torpedo) vault) but still an essential purchase. When you've bought something as cool as the razrwire and saved the space a headset and case would be taking up you have room for a bigger glasses case!
Nice accessory to have for your RAZRWires. The Motorola logo on the top is a nice detail and really shows fusion. Everything fits very nicely.