Ralph Lauren Denim & Supply Serape Field Jacket
Buy It Now at Ralph Lauren Denim & Supply, $178
Whether it's your old M-65 or this colorblocked version from Denim & Supply, you can't go wrong with a military-inspired jacket. Lightweight enough for warm weather, the jacket is easy to throw over your most comfortable tee and favorite jeans. The olive drab passes for green easily, and it'll match your white-on-white forces.