Quite a lot of clothing, not so much hard-core 'climbing' gear. I'll publish a full packing list in the coming months, but for example, I don't have that much stuff and yet the only thing I need that I don't have is the full summit suit (The big puffy onesie). The rest is just normal hard-core outdoor gear for sub-0 temperatures. The company I'm going with can also help with the gear of course (either to rent or buy).