Here is the gear we recommend you bring to climb Mt. Adams. It does not include clothing or items for your time in Portland.
Synthetic base layer (long underwear)
Mid layer (top and bottom) - Fleece, wool, or synthetic down jacket, and synthetic sweat pants or heavy-weight warming layer
Outer layer (waterproof) - Hiking pants and Goretex Jacket
Socks (3 pair) - Wool or synthetic
Hat / beanie (wool or synthetic; optional: thin one for day, and thick one for night)
Balaclava (a.k.a. “face gaiter,”) - Used for very windy/cold days/nights
Gloves (two pair) - One thin pair for daytime hiking, and a thicker pair for night
Optional Overmits (for heavy winter weather)
Sun hat or baseball cap
Waterproof winter hiking boots -- You do not need a serious mountaineering boot for this trip, but proper hiking boots are necessary. You will be more comfortable if the boot has at least a half shank and is crampon compatible. No ankle height boots, rain boots, or “out and about” boots. You can rent proper boots in Portland, if needed.
Camp shoes -- You will want a warm comfy shoe for camp. Need a waterproof sole, and must be able to keep you warm at night.
Zero degree sleeping bag
Backpack (55 liters)
2 wide mouth Nalgene bottles (or 2 liter equivalent).
Spoon or spork
Pocket knife (small)
Headlamp with extra batteries
Sunglasses / goggles (no Gucci shades)
Toothbrush / toothpaste
Personal first aid kit (band aids, mole skin, medication)
Small personal towel
Extra snacks for yourself
Solar charger/ battery charger (optional)