DK or light worsted weight yarn in 2 contrasting colors.

Large: ~260 yards (100g/3.53 Oz.) main color & ~85 yards contrast color
Medium: ~240 yards main color & ~80 yards contrast color
Small: ~200 yards main color & ~70 yards contrast color

Size 1-2US needles ~30” circular+ for magic loop or DPNs & 16” circular (for Med & Lg)
also recommended: tapestry needle, stitch marker

We have uploaded a few videos to help you:
https://www.youtube.com/watch?v=phouSDOCQ-o
https://www.youtube.com/watch?v=BeDX394s_y8
https://www.youtube.com/watch?v=6I5ga5Pi8Og

If you are interested in adding suede soles after you finish knitting these we offer them in our Etsy site - free worldwide shipping.