I'd second the Alaska Guide creations but there are a lot of nice bino harness these days. The kuiu are very slim, simple and functional. While the Alaska guide creations increases your ability to carry a few more things. For instance I carry my rangefinder, wind checker, mouth reeds and my...
The x2 isn't a great meat hauler, if your planning on several mile packouts with heavy loads....its gunna hurt! There are some cheaper options out there that will handle much more weight in a more comfortable fashion. Works great as a day pack but is also limited in volume for any overnight...