I just picked up an X-Jacket and it looks sick!
I've seen this jacket for a few years and decided to go with this over the Kokatat. The boys at IR stick behind their product like no other company in the industry. If you're not happy with the purchase, let them know! They will make it right for sure.
Everyone I know with the X-Jacket loves it. Personally, I don't think you can go wrong either way. But, you know which way I went!