Expensive sunglasses are great right up until the point you sit on them or they get crushed in your bag after jockeying for position on the subway.  If you’re going to shell out undisclosed sums of money of a pair of fancy shades it would be nice if you could put them in something that could survive your irresponsible lifestyle.  The Oakley Vault is a felt-lined aluminum  sunglasses case that you can throw in a messenger bag with full confidence that your vintage Wayfarers will be safe. If you’re the clumsy-type who often regrets shelling out enough money to inoculate a village in the third world on a pair of sunglasses that you subsequently break, then go donate some money to Doctors Without Borders and get a Vault.