Easy, Step-by-Step Guide to Your Custom 72-hour Survival Kit, with A Backpack to Start Off With! Build Your Custom 3-Day Survival Kit; Follow Suggestions from Illustrated Workbook and Assemble Emergency Supplies You Know and Trust. Get ONE for you, one for a gift. SAVE MORE with free shipping. Start with items you already have; add supplies for a 72-hour kit, using gear you know and trust. 16-page WORKBOOK has illustrations, price and quality recommendations for the 12 essential items. Interview questions help adapt kit to child or parent, for earthquake or storm, home, car, or work. Polycanvas BACKPACK 18 x 12.5 x 6 in, 2 zipper compartments, side mesh pocket, adjust padded straps.