Pack, shelter and sleep system. They carry the most grams, so they get the most thought.
Dawn on a trail is colder than the forecast suggests. Cold air pools at ground level.
Between sources, your carry decides the pace. At sources, your treatment decides the risk.
One stove, one pot, one spoon. The kitchen is where beginner packs grow grams fastest.
Boots, sun, light and the skills to stay on the mapped line.
Small kit grouped so nothing gets searched for in the dark.