An adjacent intermediate panel, attached at a common narrow end to {HEAD ~ the holding fabric}, may be made of {TAIL ~ a similar or heavier material} or of multiple layers as the upper panel 
An adjacent intermediate panel , attached at a common narrow end to { HEAD ~ the holding fabric } , may be made of { TAIL ~ a similar or heavier material } or of multiple layers as the upper panel
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH