Both my wife and I use the Magic Marine Revolution harness. Its comfortable but probably heavier than a lot of the others available. The reason I got it was the Yoke for a neck strap so it cant slide off the shoulder or spread the weight unevenly, the buckle covers so that the buckles can't be unhooked accidentally, the leg strap padding and the hard back which seems to let me stay straighter without loading up my back. I adjusted it to fit me when I got it and just slide in and out of it when I use it. They're not listed at Catsailor on line store
theres a good photo of it at
http://www.sailingproshop.com/Products/Magic-Marine-Revolution-Trapeze-Harness__MM086500.aspxEnjoy your boat