Are you looking for a CombatShirt in Multicam or Woodland or maybe Flecktarn? We have it from brands like Invader Gear, Claw Gear or 101Inc.
A combat shirt is an essential part of your Airsoft Uniform. Not only does it protect you from the cold or rain but also from incoming bb's. Usually the torso is protected by a fabric that ensures that the sweat does not remain on the skin but is absorbed by the fabric. The sleeves are usually of a somewhat stiffer material to protect you from incoming bb's.
Also, most combat shirts give you the opportunity to attach patches on the sleeves of for example patches of your team or possibly the flag of your country of origin.