At $250, they really should come with a hard case. The cloth bag is a joke (should only be used for lens cleaning). An additional $20 - $25 for an Oakley brand case is silly at this price point.

That said, you've already paid $250 for them, might as well fork over a bit more to protect them from accidental damage.

Great build quality, super light weight (titanium), amazingly clear lenses (polarized tungsten iridium).
I was at a stop light earlier and lifted up my glasses to see the difference; The rear windshield of the car in front of me was completely obstructed with sun reflecting. It was like a mirror, I couldn't even see into the car. But with the glasses on, I saw through the car all the way to the car in front of them like the glare wasn't even there. Amazing lenses.