Synthetic hair that you can curl or straighten

For a long time synthetic hair was differentiated from human hair by its inability to be styled with curling iron. Several years ago most synthetic fibers would melt under relatively low temperatures, like from a blow drier. Not any more!!!
There are synthetic fibers nowadays that allow to be styled by curling iron. One can choose to straighten or curl it, as long as the temperature of the iron does not go above 350 degrees.
One example of such synthetic fiber is Futura fiber which can be treated just like human hair. The only major difference between synthetic and human hair then would be the Price. If you can't afford the price of human hair, then why not try inexpensive synthetic hair that is heat resistant.
At last, there is synthetic hair that looks so natural, you can curl, straighten or weave.