Wiggle is a thick-and-thin singles yarn, which gives the fabric great texture and, knit on 12mm needles, amazing elasticity.

I knit the largest size from a single skein of Wiggle, but there was hardly any left over when I was done - probably less than a metre. Rather than buying a second skein, though, I’d recommend using a different yarn to sew up with, or omitting a row or two from the stockinette section. There will still be plenty of fabric.