Do the thru-hiker patterns come like traditional patterns with all the different sizes and you cut them out for the specific size you want to make? Or does it only come with the size that you order? I was thinking I might be able to do a few projects with the same pattern in different sizes.

This might be a little late, hopefully you have gotten the information you needed.

It depends on the kit.
For example, the Liberty Ridge Pants are sized to your specs, one size. The jacket/shell includes S-XL. I think you can fiqure out which of the kits include the range of sizes by looking at the extended description of the items in question. Or email AYCE directly, he is super helpful and responds quickly - I've bothered him a bunch lately.

Jason