When buying fishing line one characteristic to consider is the memory that the line has. When the line is spooled and sits on to the reel for a while, it tends to keep that circular shape once it comes off the reel. Some lines keep more of that circular shape than others and that is what we’re talking about when we say "Low Memory". It means that the line does not retain the circular shape after it is cast and is more straight when it comes off the reel.
Low memory lines have several advantages for fishermen. Low memory lines typically cast more smoothly and farther. They flow off the reel more easily, leading to improved casting distance and accuracy. They allow for a more natural presentation of baits and lures. They behave more naturally in the water, leading to increased chances of attracting fish. With reduced coil memory, you can feel even the subtlest of bites, improving your reaction time when a fish strikes.
There are several factors that contribute to a line having low memory. The material that the line is made of contributes to its memory. Fluorocarbon lines tend to have lower memory compared to monofilament lines. Also braided lines have low memory because of the way they are constructed. Diameter is another characteristic that affects a line’s memory. A thinner line will have less memory than a thicker one. That’s because a thinner line is more flexible and it won’t retain the shape of the spool as much as a thicker one.