Doesn't help. By "solid," I was referring to the weave of the fabric on the wings. Some of the wings are a densely woven fabric, while others are a very open netting, and other wings have no covering at all. As you said, the choice is obviously personal; but on a development boat like the Moth, I'm sure the "personal" choice is related more to speed and efficiency than to comfort. That's why I asked about the advantages and disadvantages of each.