Your standard gear allotment is limited to 18-20 kg (35 pounds). Overweight or extra luggage will require an extra support crew which will cost you $20 USD per day. As long as you stick to the packing list below, you should be fine.
Packing Tips
Wrap clothing in waterproof plastic bags In your day pack, take along water, sunglasses, camera, rain pants (trouser) and jacket at a minimum. Add any other items you might need during the day because you may not see the support crew until end of your day's trek.
Bring extra sets of batteries for any electronics keeping in mind that cold weather shortens their life Carry high standard climbing gear on the airplane in case baggage is delayed.
You want your inner layer to be wicking -- no cotton. Next layer should be insulating and warm, and the top layer should be water proof but breathable. You will need clothes for hiking during the day, lounging in the evening, and for sleeping. Layers are important as temperatures vary greatly.
Your clothing should be lightweight, breathable, hand-washable, and quick-drying.
Shorts, mid-thigh or longer Long pants (zip-off pants are very useful),Short-sleeved shirts, Long-sleeved shirts Undergarments, socks,Sport bras for women Sweater, jacket, windbreaker, Rain racket and pants or rain poncho Sun hat with brim and chin strap, Bandana (for dust, washing, etc.), Belt
Sleeping bag (Rated -9 °F/-25 °C or colder is recommended) Sleeping pad and repair kit
Large duffel bag or backpack with rain cover, for porters to carry Day pack and rain cover, for you to carry , filters, memory disks (you will not be able to download)