I think we're mixing up terms here. A rush pack, go bag, 72 bag, bail out bag tend to refer to that grab and go kit you have in your truck, etc., when you have to hoof it quickly from one destination to another.
That said, I'll play. This whole get up, including the Glock 17, spare mag, and Delorme GPS weighs 16lbs. That's less than most of the survivalist wannabes are hauling around on their belts everyday when you take their primary concealed piece, BUG, mace, keys, cell phone, flash light, etc., etc.
So what's is it / what's in it?
Osprey 10 cycling hydration pack.
3 liter Nalgene Camel
1- winter hat
1- pair lightweight gloves
1 UnderArmour lvl 2 pants
1-UnderArmour lvl 2 shirt
1- lightweight cotton socks
1- heavy weight wool socks
All clothing items are packed in a water resistant stuff sack
1- SOL Escape Bivvy. I've tested them in every variety of weather. Only drawback is they rip after a few days.
1- SOL Emergency Space blanket. Lightweight rain shelter
1- 50 ft paracord with carabiner. No, you're not going to be abseiling with it with a knife clenched in your teeth, but it does make it easier to string up a shelter, hang a bear bag.
1- small emergency first aid kid
1- Ace bandage
1- pill bottle containing Ibuprofen and Immodium. Pop the Immodium before hoofing it.
1- Aqua Potable water purification tablets
1- Aqua Potable iodine neutralizer
1- "Fire Kit" containing a Bic lighter, water proof matches, 1 Jetfire cube - I won't be making a fire unless it's a diversion, and that means a house or car.
1- 6 dehydrated wipes.
3 - BPC dehydrated meals at 900 cals each. Not a lot, but if your bugging out you're going to moving and starving until you get where you're going.
1- Uncle Ben's Insect repellent - can be ditched this time of year.
1- compass
1- Delorme PN- 360 with 2 spare AA batteries.
1- Surefire flashlight. Again, you're dumb if you end up using this.
Best part is even though the pack is a subdued color, it's still just a cycling pack. That way I don't look like a "shoot me first" caricature who fell out of the classified section of Soldier of Fortune magazine.