6B3T body armor is the Soviet Union's first attempt to combine body armor and carrying equipment, the concept of "assisting defense in one" in 1980 in the world's leading position, the front chest can put 4 AKM magazines, the back waist can be placed on both sides of 4 grenades, the front chest with debris bags, can be placed personal first aid kits, radio and so on. There's a larger utility bag in the back for gas masks and other personal items. In addition, the waist belt can be inserted into a field belt, which is used to tighten the waist load and mount other equipment. You don't have to rely on a shoulder strap to share the weight.