The Military Sewing Kit should be a staple of every Go-Bag. As the saying goes, "Its better to have it and not need it than to need it and not have it." And for an item this compact and lightweight, that is doubly true! If you've ever lost a button in the field or busted a zipper seam on a backpack on a march, you know that being able to make expedient field repairs is critical to mission success.