The layer that handles the everyday: cuts, scrapes, blisters and the puncture that gets dirt in it.
Small in the box, first in the plan. The snake bandage is the item this whole kit is weighted toward.
Camp runs on fire and fuel. The burn layer is cheap and used far more often than people expect.
The personal layer beats the generic layer. The list in the bag matters as much as the tablets.
The items that make assessment possible: light, sight, measurement and a written record.
The part of the kit that starts before anyone is hurt and finishes after the vehicle is moving.