Body armour is a necessary, but extremely heavy element of an operator's equipment, especially when it carries ammunition on it. Therefore, a heavy body armour can be extremely inconvenient for wearing with a jacket.

Combat shirt solves this problem, as it is made of lightweight and elastic, sweat-wicking material, which normalises the microclimate under the clothes.

"M1" combat shirt is extremely light and so it is an excellent choice if you need to perform active actions in hot weather. The absence of elbow pads makes your movements more comfortable.