One of the coolest ways for a man to style such a hard-working piece as a cardigan is to marry it with a beige long sleeve shirt. For something more on the cool and laid-back side to complement your outfit, complement this look with white canvas low top sneakers. Keep this ensemble in your head come warmer days, and we guarantee you'll save a ton of time getting ready on more than one occasion. This one is a nice and mature getup for 20-something guys.