A reversible sock. Can be worn inside-out or outside-in. Or both ways at the same time! A really quick knitted design. 6 to 8 hours per sock! Worked toe-up with a flapped heel. Sizing: EU Shoe Size: 34 36 38 40 42 44 Foot circumference: S (M) L = 20 (21) 22 cm without stretch. Choose your size from shoe size, marked with square brackets AND foot circumference marked with round brackets. You’ll need: Yarn: 100 g of worsted weight yarn. 199 m / 100 g For size 40 Needles: 4.5 mm (US 7) dpns or circular needle for magic loop. Gauge: 20 st and 29 rows in stockinette = 10 cm / 4 “ This pattern has been tested