shoes,boots,that sort of stuff.on a canoe tripping site it was suggested that any spare foot wear you might have for loafing around a camp should also have enough strength to be used on the portages carrying packs and canoes.a pair of sneakers would be better than flip flops,so on.i was also reading a book about the German breakout of a Russian encirclement and among the gear that was desperately needed was boots.so the point..i don't see some sort of back up foot ware in most/all of the BOB's i see here.i see enough first aid and odd hardware to fill a store but thinking about it i would rather have a second set of hiking type sneakers,stuffed with soxs than glow sticks and several types of knives.you get my drift i hope.