Fourstar Robinson Jacket: Get ready for the perfect relaxed pullover shell. The Fourstar Robinson Jacket is part of the Koston Signature collection. Made with a large front pouch pocket, a draw-cord waistband, and elastic cuffs, this jacket is made for the ultimate in comfort and function. The Fourstar Robinson Jacket is the perfect layer for those days when the weather decides that a simple t-shirt won’t be enough.