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