Designed to be worn under body armor. The elastic torso fabric is fire retardant, breathable, and comfortable used on naked skin . Extra length has been added so it sits securely in pants. Elbow padding system, where D3O® materials have been used, provide more protection and maneuverability. The neck zipper has extra protection to avoid contact with zipper and skin. Spacious square shaped shoulder pockets what are opened and closed with a zipper. On the shoulder pouches there is a Velcro™ MOLLE system to provide different options for attaching gear, insignia and other items. Two small pockets on sleeves for smaller items. Loops added inside the pockets to provide opportunity for gear attachment.