From top to bottom, your kit should have the essential items listed below. I will provide you with a waterproof duffle bag so you do not have to invest in one.

HEAD PROTECTION:

• sun hat
• wooly hat or balaclava
• sun glasses (good enough to shade against bright snow)
• head torch (with extra batteries)
• scarf

BODY PROTECTION:

• a thermal base layer (top & bottom)
• wicky shirts (3-4)
• a light fleece
• a heavy fleece
• a down jacket (in place of the heavy fleece)
• a waterproof (top & bottom)
• trekking pants (zip-offs are perfect)
• gloves
• trekking poles
• sleeping bag (I use a down sleeping bag rated comfortable at -18°C)
• sleeping Mat

FOOT PROTECTION:

• trekking boots (Grade B/C)
• thick thermal socks and a couple of regular sports ones
• gaiters

OTHER ESSENTIALS:

• water bottles (2 bottles of 1-liter each)
• platypus or camelbacks systems (very convenient but not a must if you prefer bottle)
• water purification tablets
• personal first-aid kit
• sunscreen
• personal wash kit
• tennis shoes or sandals (for around the camp)
• earplugs
• a day bag (to carry your personals and items you may need during the day)
• a trowel
• bacterial handwash or anti-bacterial
• blister pack