It was an accident on a prototype Twinn. I realized they had cut it too long. The Twinn is 12 feet and made of light sil. It weighs in 14.5 oz. This is the only one now but thought I would get a feel for what people thought of it. All the same dimensions of a standard Twinn just 12 feet long. One is upside down. Sorry my fault Tarp will not give you the ability to fly, reverse gravity, or stand on your head.