Emergency backpack.

My BOB/GHB weighs 22 lbs in summer, 28 lbs in winter, not counting water. I plan on carrying two army 2-qt canteens, adds 10 lbs. Pistol belt, Glock 20 & three full mags, 1-qt canteen & cup, and Kabar adds another 7 lbs. Totals 39 lbs summer, 45 lbs winter. I'm 65 yrs old, weigh 170, in good general health and can walk a mile and a half at 4 mph (flat pavement; no load), but that is not a sustainable rate; with a 45 lb load I would be doing well to maintain 2 mph on good trai, barely 1 mph or less cross country.
My bag is alway in my car along with a fair amount of additionl water food and equipment.