A sweater that works on the weekend or during the workweek sure sounds like one of the best sweaters for men in our book. Best overall V-neck sweater for men. Buy: J.Crew Cashmere V-neck Sweater ...

It's part functional, part aesthetic, and all-around cool. For those extra-hot days, the sweater never even has to touch your arms. Just tie it around your waist, and you're set.