No driver plans to break down on the side of a busy highway, but being prepared makes all the difference. An essential roadside emergency kit should contain:

1. Heavy-duty jumper cables or a portable lithium jump starter pack.
2. A high-visibility safety vest and reflective warning triangles.
3. A reliable LED flashlight with spare batteries.
4. A basic toolset (screwdrivers, pliers, and an adjustable wrench).
5. A first-aid kit with bandages, antiseptic, and gloves.