A Harness is just as important as anything else, if not more important as it is a piece of life saving equipment. In my opinion it is the most overlooked piece of gear in a hunter's inventory. If you want a little more room, use the lineman's-style rope that it comes with. If you want just a little more slack, I'd suggest making a short extension with RATED tubular nylon or buying a RATED prefabricated one through a reputable climbing store (i.e. REI). I'd suggest prefabricated one for those who are inexperienced in tying good knots. PM me if you've got questions.