Met-RX Meal Replacement Bars, the Big 100 ones (100 grams of food/400 calories). Buy the ones that are closest to 30%-30-40% of their calories from protein, fats, and carbs, respectively.
They are not hot-weather friendly but are cheap and plentiful and will stay in the pouch even if any chocolate coating melts a bit...
I have more ships' emergency rations bricks (with packets of salt duct-taped to them) in my GHB too actually which are indestructible, but, I'm the exception and after shipping they ain't so cheap as they initially appear to be!
Last edited by HockaLouis; 12-21-2012 at 06:02 PM.