From the website:

This is a rectangular garment which works just like magic! It can be worn as a wrap, a scarf, or buttoned as a cowl or snood. However, by doing up the snap fasteners and turning the garment inside out you can not only create a shrug with a rolled collar, but by undoing the fasteners it can be changed into a warm top by wrapping the garment round your torso in a crossed-over manner and fastening the buttons at the rear. Phew!

MEASUREMENTS & SIZES
180cm x 40cm

ABOUT THE YARN
King Cole Riot Chunky is a variegated yarn available in 13 different colourways. It is made from 30% wool and 70% acrylic.
Need an alternative yarn?
James C. Brett Passion Chunky is a similar yarn in slightly darker colorways, for a more subtle effect. It is machine washable at 30°C.

Materials needed:
Yarn: King Cole Riot Chunky,
(A) shade 653 Seashore, (B) shade 652 Dawn, (C) shade 662 Lava, two 100g balls of each
Needles: 6mm
Buttons:assorted, medium, ten
Snap fasteners: 9mm, eight
Tapestry needle