The rear side insulation is preferably {TAIL ~ an inflatable bladder} composed of {HEAD ~ flexible tubular or modular segments} 
The rear side insulation is preferably { TAIL ~ an inflatable bladder } composed of { HEAD ~ flexible tubular or modular segments }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD