Securing box

How do you guys secure your box with ur subs? I've seen straps but that is too ghetto to me. I guess the only other thing is to use brackets but if you have a sealed box doesnt that defy the "sealed" part? Seeing as how screws will make it not be air tight.
 
I've found that Velcro Extreme placed on the bottom of the box works just fine.

N/M I see you have a Fox. I would definitely secure it better than Velcro. Don't want a flying box coming at the back of your head in the event of a collision.
 
take the subs out and put bolts through the inside through whatever u want this way u cant c the bolts and the box wont move, for sealing just put some silicon in with the bolt b4 u install.