Updated Ten Essential Systems
>Navigation: map, compass, altimeter, GPS device, personal locator beacon (PLB) or satellite messenger>Headlamp: plus extra batteries>Sun protection: sunglasses, sun-protective clothes and sunscreen>First aid: including foot care and insect repellent (as needed)>Knife: plus a gear repair kit>Fire: matches, lighter, tinder and/or stove>Shelter: carried at all times (can be a light emergency bivy)>Extra food: Beyond the minimum expectation>Extra water: Beyond the minimum expectation>Extra clothes: Beyond the minimum expectationhttps://www.rei.com/learn/expert-advice/ten-essentials.html