The 4-Pocket BDU Coat is sewn to military specification MIL-C-44048G and features drain holes in the Bellows pockets, fused pocket flaps and collar, chest pencil pocket, two-piece double-reinforced elbows, felled side seams and sleeves, and adjustable sleeve buttons. Sewn to Military Specification MIL-C-44048G. Drain Holes in Bellows Pockets. Fused Pocket Flaps and Collar. Chest Pencil Pocket. Two-Piece Double-Reinforced Elbows. Felled Side Seams and Sleeves. Adjustable Sleeve Buttons.