French Navy (741) Cottonsoft DK is an amazing soft cotton that lends itself perfectly to garments & blankets. It's 100% cotton & is DK/Light Worsted in weight. 4mm knitting needles/hook are recommended for this cotton, but always check your pattern & tension first. Each ball of Cottonsoft DK is 100g & measures approx 210 metres/229 yards. This cotton can be washed on a 40 degree wash.