Naval Academy Midshipmen Colosseum Men's Ultra Long Sleeve Raglan Tee. This heathered Midshipmen shirt is a 100% Polyester material for 100% comfort. This heather charcoal Midshipmen shirt with heathered sleeves has the team logo in a rubberized screen-print across the chest. Show off your Navy loyalty at the tailgate this fall. Officially licensed Navy Midshipmen fan gear.