A good pair of sensible walking shoes can be surprisingly effective even where mountain walking boots are preferred. If carrying a Bug out Bag, as long as the bag is between the 20 and 30lb mark then heavier boots might not be required, but the terrain you cover will ultimately be the deciding factor. Stiff Vibram soled heavy duty are preferred for heavier loads and rocky bouldering terrain. Gaiters or Wool Putties can be very useful even when wearing shoes.

I personally prefer the range of Active air flow Goretex lined shoes from Clarks. These are nice and comfortable and pretty durable.

http://www.clarks.co.uk/find/department-...es-is-gore2dtex