This sock is designed to give the illusion of dimensionality, rather like the bellows on a concertina. This small accordian-like instrument mesmerizes everyone with its happy music and wavelike rhythm as the bellows are pushed in and pulled out.

Knit the Concertina Lace Socks for finished foot circumference without stretching 7" (7.5", 8", 8.5", 9"), foot length 7" (8.25", 9.5", 10", 10.5") (leg and foot are easily adjustable), with 225 (275, 325, 375, 425) yards of Fingering Weight Yarn. Suggested needles are US 1 (2.5mm) Double Point or Circular Needles. Charted and written instructions.