TM 10-8415-209-10 TM 8415 10/2 (1) Don duty uniform (when specifically authorized, the BDO/CPOG is the duty uniform).  Tuck trouser cuff of duty uniform, if worn, into combat boots and lace for a comfortable fit. (2) After  selecting  proper  size,  open  vapor-barrier  bag,  remove  overgarment  and  perform  PMCS  IAW Table 2-1:  If damaged, exchange item for a new one using designated supply system Retain containers an'' packing (3) Don overgarment trousers (1) over normal duty uniform (or underwear in hot climate). (4) Close the fly, fasten two fly opening snaps (2), and adjust waistband tabs (3) for snug fit. (5) Don overgarment jacket (4), close front slide fastener (5) and secure three hook and pile fasteners tapes on front flap (6).  The front slide fastener may be left partially open for comfort until unit MOPP directs it be closed. 2-19