I might be the only stringer who still believes there is a place for polyolefin strings. What is it? Well technically it’s still a plastic just like nylon and polyester, however Polyolefin is almost as soft as natural gut but has limited stretch like polyester. 

Not all multifilaments are created equal. This one happens to be low powered and has a slick and durable outter wrapping. Let me introduce, Head’s Velocity MLT 16. This is one of the most popular multifilaments to hybrid with poly. It’s been tried and true for YEARS. It has a slick outer wrapping makes it ideal as a cross string. It allows the main strings to slide over it (like polyester does) so you can impart more spin on the ball. Some people use it as a main string. It’s really up to you. But it’s comfortable yet still controllable multifilament.