Lycra Sub Enclosure

I am trying to make a custom fiberglass sub enclosure and read directions calling for lycra. The full directions can be read in this post

http://www.automotiveforums.com/vbulletin/showthread.php?s=&threadid=62559&highlight=this+is+really+my+first+fiberglass+proje ct

my question is what type and where can I get the lycra material that i need.

Thanx alot

Lyrca is lyrca, just a flexible stretchy material made from nylon. something like pantyhose or something... find yaself some lyrca in like tights or bike riders clothes, dancers clothing... that sort of thing. then cut it to suit... it is just to form the basic frame to wrap some fiberglass around from what i can tell... so just find some cheap lycra clothing and rip the crap outta it