Materials – cable-knit sweaters are meant to be comfortable and warm, which is why we believe the best ones are made from wool. Wool, while not the easiest to clean, is a material that is breathable and super warm.Fit – When it comes to choosing the right fit, it all comes down to what you prefer. The worst thing you can do is get a sweater that is too tight – they’re meant to be comfortable and easy to move around in. A well-fitted sweater is one that is tight enough to hold its shape but doesn’t droop. Brands – It’s no surprise that brands are also what we look at when deciding what makes a good sweater. Brands such as Polo Ralph Lauren and Woolrich have staked their claim on the fashion staple for years, so it’s little wonder they are among the best cable-knit sweaters on the market.