Like many preppy staples the cable knit is a piece that can easily transition between very masculine and very feminine. As always, it all depends on how you style an item. Look for cable knits in bright colors, especially like the red that the woman is wearing above. The brighter the colors the more feminine, and the more you can play with what you pair it with.
So, on that note, I am off to sit by the fireplace in a hunter green cable knit sweater, a glass of cabernet, and my loved one. I suggest you all do likewise!