The Magnuson Vest has a button placket, stand collar, side slits and oversized pockets, not to mention the gathered waist.  So many utility or military inspired vests have the waistband casing on the outside of the jacket giving it a very casual look.   The Magnuson has the ability to cinch in the waist but not have the ties hanging down, so the casing in inside! 

Fabric Suggestions:  Chino Twill or a bottom weight gives the vest a structured look, Viscose Twill shows a drapey version, even a crisp linen for a soft, more shirt like look 

Sizes included:  0 - 24