This rucksack is crocheted using 2 strands of Coton fifty yarn (50% cotton - 50% acrylic). You will need to have mastered the basic stitches: single stitches, slip-stitches and half-trebles. Perfect for crochet fans, the pattern requires a 4.5 mm crochet hook. It keeps it shape beautifully, thanks to the tie fastening which also doubles up as shoulder straps. Size approx. 25 cm and 18 cm in diameter. The bag requires 4 balls of yarn, is machine-washable and can be tumble-dried.