Mine weighs about 40 lbs and even that can get uncomfortable in a few hours. It contains the following: Leatherman tool small diamond sharpener Cold Steel Mariner knife cable saw magnesium and flint fire-starter film cannister of vasoline cottonballs mosquito repellent (2) space blankets halizone tablets and micro-filter flattened roll of aluminum foil with cardboard center removed (4) MREs Pancho shelter half (2) pr socks, wool sweater, watch cap, extra T-shirt bar of soap and small pack of diaper-wipes camelbak salt and pepper box .22 hollowpoints AR-7 explorer One litre coke (mostly for the empty bottle) compass Magellan gps w/extra battery small first aid kit small mag-light w/led bulbs 100' parachute cord Roll of electrical tape