How about this for the Loop side:
knitted loop material
http://www.rehabmart.com/product/vel...loop-7945.html
Anyone go down to a local fabric store and ask what fabric is easily caught by the Velcro hooks?
"Our problem with Velcro is that its hooks easily grab onto articles of clothing that they were NOT intended for - especially, for example, knit fabrics used for nordic ski suits, and cycling kits. When the hooks brush against the synthetic fibers of polyester, they agitate and pull at them. Even very slight contact with Velcro causes yarn breakage or what we call fabric picking - a process that results in fiber ends that have pulled away from the fabric surface. Ouch!"