This is a pattern for a simple but effective scarf or wrap, which can be worked with many yarns and needle-sizes.
Instructions are given for yarn in sport weight and a button with 3,5 cm in diameter.
Corrected instructions for buttonhole:
next row: k11, BO7, k until end of row; next row: k52, CO7, k11
And thanks to Quito to Ana (HilosyLanas) for the spanish version.