I've had now two Quaser skirts in succession--neoprene deck, nylon tunnel, with suspenders--wore the first one out, then got another--the one I use now. Very good seal to the cockpit coaming. Very happy with it, and I'll get another when this one wears out. By the way, I love the Dupont tag that comes with the sprayskirt, warning that one should avoid direct sunlight and salt water!!
Some more thoughts about sprayskirt use: provides a useful surface for one's chart; keeps out pouring rain. Hard to get my mind around the idea of kayaking without a sprayskirt.