Below is a list describing the minimum required items to participate in this event. Hiking safely is about being prepared so that you can respond to an emergency situation or spend a night in the woods if you have to.
Do not rely on others to have extra items to share with you at the meeting spot or on the trail. You should know how to use all of your equipment - test and adjust it prior to this trip. Please ask me if you have any questions regarding gear.
Proper, well-soled hiking or mountaineering boots with synthetic or wool socks with a spare pair in your pack.
Dress in layers with "wicking" synthetics next to the skin and wool or other synthetic over that if further insulation is desired. Also, it can be windy at the summit and it will typically be much colder at higher elevations so please be prepared. Make sure your layers fit comfortably over each other. DO NOT WEAR COTTON! While cotton is a great insulator when it's dry, once wet it doesn't dry easily and it rapidly conducts heat away from the body. Also consider bringing an extra layer in your pack just in case.
In case of rain/heavy wind- Windproof/waterproof shell (with hood) as well as windproof/waterproof pants. A fleece pullover or similar insulating layer for the summit is recommended.
Food and Water:
Bring high-energy snacks making sure you have plenty of salts and sugars, your choice of food for lunch, and pack extra just in case. Again, bring enough water to stay properly hydrated during the trip (2-3 liters is what I suggest). Use at least two Nalgene bottles or a hydration bladder to carry your water. It's a good idea to have a hearty meal the night before followed by a good night's sleep. Also, try to begin the hike well hydrated.
Be prepared to spend a night in the woods if you have to. Minimal options include an ultralight tarp, a bivy sack, or an emergency space blanket (which packs small and weighs just ounces). A pad or some way to get off the ground is also highly recommended (though pine boughs can work).
Other Essential Gear:
Map and compass: don't just bring them, know how to use them. Also, a plastic whistle, headlamp with spare batteries, a first aid kit containing any medications you may need personally (please let me know if you have any applicable allergies, medical conditions, and special medications you may be carrying), a small knife or multipurpose tool, matches or wind-proof lighter and fire starter, a toiletries kit (e.g. hand sanitizer, toilet paper and a zip-lock bag to pack out your used personal hygiene items), sunscreen, lip balm, sunglasses, and a waterproof pack cover.
Gaiters to keep rocks/mud out of your boots, stowable trekking poles (recommended) and camera.