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