In the army wardrobe "tactical shirts" appeared a long time ago. These are, for example, well-known tunics and many types of tunics, which occupied an intermediate place between the uniform and the shirt. The tumultuous period of the heyday of this type of equipment of a modern soldier, like a "tactical shirt", falls on the time when the fighters, first special forces, and then in large numbers began to actively use body armor and various kinds of discharge vests. Due to the specifics of the application, the "tactical shirt" of the UBACS type has a clearly demarcated zonality of the structure and consists of 2 zones. This is the torso part or body, as it is often called for short, and sleeves. And they differ not only in coloring, but also in the materials used in the manufacture. Depending on the expected seasonality of operation, the body, as a rule, is made of membrane materials that take the sweat away from the body surface and warm it well. For example, it can be knitted fabric from a thread-absorbing polyester, or a material that is made from quad fiber that absorbs sweat perfectly and throws it out onto the outer surface. Due to the evaporation of moisture creates a cooling effect. This fabric is much softer than cotton, durable and does not stretch. And you can wash it with the help of a typewriter, moreover, it dries out very quickly.
Sleeves are usually made of polycotton, a mixture of 70% cotton and 30% polyester. "Tactical shirt" for wearing in the cold season well protects the hands and throat from the wind, which is covered by a stand collar. Since the torso part is covered with a vest, to increase the functionality, UBAKS'y supply pockets at the shoulders and often small pockets around the cuffs. Tactical shirts are usually equipped with a short zipper for easy dressing. In addition, in hot weather, it can be undone to improve ventilation. Tropical models are often equipped with detachable zipper sleeves, yet a short sleeve for such cases has its advantages. Camouflage patterns usually only have sleeves, and the torso part is almost always monochromatic: khaki, dessert, olive or coyote.