Yardage assumes 1 oz worsted weight yarn = 50 yards

Yardage is for both sweater and beret

You will need:

800 (1000-1200-1200) yards of denim worsted weight yarn
200 yards of red worsted weight yarn
200 yards of white worsted weight yarn
3.75 mm needles (5)
4.5 mm needles (7)
2 stitch holders
Scissors
Needle