I swear to god right nowI feel like the ESPN commercial. Talking out my a$$. Over the past 2 or 3 days I've done this twice.

Sorry about that. Plastic on the sides but steel latches and hinges on the double model. The guys here swear by them for air travel. The Vanguard is another good choice. you'd have to hit this things with a sledge to do damage too them. The plastic is heavy, stiff and rugged.

Here's a link where they talk about cases.
http://www.huntingnet.com/forum/tm.aspx?m=2137257