Recommended Gear List for Climbing Mt. St. Helens

Here is a list of the gear I am recommending for Mt. St. Helens:
If you have any ideas for changes to the list please comment, I'll update the list.
 

Mt. St. Helens Climb
Item	Quantity	Note
REQUIRED ITEMS
Daypack or Camelback	1	No need for a full backback
Water	3-4 Liters	There is no water source
Food	as needed	Pack a lunch and lots of snacks
Sunglasses
Hat
Hiking Footwear		Waterproof
Spare Socks
Flashlight		In case we are late coming back
Spare Batteries
Sled		We may be able to slide down bring a heavy garbage bag or a lightweight sled.
OPTIONAL ITEMS
Gaiters		Keeps snow out of boots
Trekking Poles
Camera
GROUP ITEMS
First Aid Kit		Incl. blister kit
Sunscreen
Map
Compass
GPS