In addition to selecting the proper clothing, footwear and pack for your hike, you may want to consider a few of the following. Having those items may help others as well.
Whistle: Remember a BEAR does not know if you are on a short day hike or hiking thru the Smokies on the AT. Having a whistle will help to deter a Black Bear in the Appalachians. Should you yourself be in distress, the Whistle in all probability is going to be your best bet in getting help.
Air Horn: In addition to a whistle we sometimes carry a small air horn for additional backup. The idea is to make as much noise as possible should a bear cross your path.
Mole Skin: If your prone to blisters or have not yet broken in those boots, your going to want to carry along some mole skin.
Duct Tape: When all else fails this is your “go-to” item. We have seen many times where hiker’s feet are so blistered that they have to be duct taped so that he or she can return to the trailhead.
First Aid Kit: A compact first aid kit will come in handy for a lot of things. We have seen many hikers in distress because they did not eat right and have low sugar. Have fallen and gotten a minor injury. Or they may be dehydrated. A good first aid kit should have these items.