The spider goat is a mutation of a spider's DNA with the one of a goat. Bio steel is the name given to the fiber of that mutation. They are using it to make spider silk. This is a new expirement so not everything is known about it. Nexi is the inventor of the spider silk. They are the only company to do it successfuly. In 2009 the transgenetic goat was sold to canada agriculture museum after Nexia went bankrupt.
The process is not fully developed yet but they are experiencing to make it better.
The spider goat fiber is as strong as steel without having that heavy weight. It can resist temperatures as cold as -20 degrees Celsius and as hot as 330 Celsius. The fiber can be dried.