Medium skills. You need yarn (Organic cotton from Stoff & Stil is: Worsted,10 ply, 9 wpi. 200 gram. I am not sure of how many meters/yards since the producer doesn´t tell, but 440 meters or 441,2 yards is enough), needles (4 mm/US 6) and a piece of fabric for the backside. Knitted back and forth. Two sizes: small to medium and large to x-large.