This allows the jacket to exert {HEAD ~ an inwardly compressive force} on the plurality of {TAIL ~ sleeves} when it is placed under tension 
This allows the jacket to exert { HEAD ~ an inwardly compressive force } on the plurality of { TAIL ~ sleeves } when it is placed under tension
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH