I`m using high quality polished jute yarn, which is tougher than regular jute. Therefore, bags knitted from such jute keep their shape better. Jute yarn - 250 m (270 yards), weight 300 gr, thread thickness ~ 1,3 - 1,4 cm (1/2 in). You also need a pair of round bamboo handles with a diameter of 15 - 17 cm (6-6,5 in)