try some of the bait and tackle shops in your area, Stren used to make 30, 70 an 100lb kevlar braded fishing line that works wonderfully for shock cords.
Or a local Kite store may also be a source.
Originally posted by Hospital_Rocket I know the thread is about local sources, however -> one of our fellow TRF members FLYING_SILVERAD has a small business that he supplies Kevlar from.