Real Men Wear Cardigans.

Here is an exerpt from Esquire Magazine's style article called "This Is Not Steve McQueen".

The Shawl-Collar Cardigan

A shawl collar is the only manly way to do a cardigan. Midway between knitwear and tailoring, it offers all the versatility a man of action requires. Layer it with a T-shirt or turtleneck or sub it in for a blazer when company calls, but don’t ever let a woman try it on. You’ll never get it back.

Here are actual photos of Mr. McQueen himself wearing the heck out of cardigans.