Galaxy is a very wide nylon railroad style ribbon with intermittent patches of gold or silver metallic. The yarn can be knit densely or very loosely, and our jacket in Book 40 has swing built into the body by moving from a 19 to a 17 to a 15 needle. It also makes spectacular fringe. The knitted fabric is silky and yet has body, and the metallic is very noticeable (and fabulous).
Galaxy Update 5-4-18: Limited stock available undyed and a fair bit of dyed stock.