Hikers should be prepared for weather changes and carry with them raingear, hats,
gloves, and jackets, as appropriate. Sturdy footwear is essential. Each hiker should also
carry the 10+ essentials:
10+ Essentials
map & compass
fire starters (matches, candle, lighter)
tools, e.g. knife
first aid supplies including prescription medications
flashlight & extra batteries
emergency shelter, e.g. survival blanket
sunglasses & sunscreen
water bottle & extra water
extra clothing -- synthetic or wool (wet cotton doesn't insulate)
extra food
More comprehensive lists can be found elsewhere:
Washington Trails Association's "Ten Essentials" web page is here.
The Mountaineers Hiking Basics brochure (PDF) can be downloaded from this page
(click on hikebasics_web2.pdf).