Materials:
2 x balls
1 set of 2.5 mm double pointed needles
1 x marker

Gauge 
29 sts x 44 Rows = 10cm square using 2.5 mm knitting needles

Finished Sizses:
Small(medium, Large, Extra Large):
Small: Shoe sizes 37-38: Men's 4-5, Women's 6-7
Medium: Shoe sizes 39-40: Men's 6, Women's 8
Large: Shoe sizes 41-42: Men's 7-8, Women's 9-10
Extra Large: Shoe sizes 43-45: Men's 9-10, Women's 11-12