Fishing Lines – Everything you need to know

Latest Posts

One of the main parts in the assembly of our fishing gear, is undoubtedly the threads or fishing lines, and is that many fishermen have many doubts when deciding which thread to buy and which is better for each style of fishing, do not worry, we will try to clarify all these doubts and many others, in the end we can decide which fishing line is the best, either for surfcasting, jigging, spinning or any technique or style of sport fishing.

If you have ever asked yourself what kind of fishing line to use, it is normal that sometimes it is hard for us to decide, since there are several ranges in quality and uses for fishing lines and yarns in the market, whether they are invisible lines, fine and resistant fluorocarbon lines, high resistance dyneema lines, high quality monofilament and multifilament lines, fluorine, braided lines for jigging, nanofil lines or nylon skeins at the cheapest prices.

We also have the option of choosing line basses and bridges for surfcasting fishing, rat tails, elastic thread very useful for worms and many more. We even have a wide range of brands to choose from, the most well known are Seaguar, Shimano, Sunline, Varivas, Berkley, Tubertini, Daiwa, Spiderwire, Akami, Golden Fish OcaƱa, AwaShima, YGK, Power Pro, Kali Kunnan, Zun Zun, Sufix among others. So the possibilities are endless, so let’s go through each type one by one, let’s go!

Which fishing line to choose? Main characteristics

In order to be able to distinguish between a low, medium or high quality line, we have to take into account certain aspects that determine whether that line in question is of the highest quality or whether, on the contrary, we should reject it because it does not meet our expectations and demands as sport fishermen. If we know how to identify the memory and abrasion resistance of the line, we will have a lot of gain in recognising whether that line is worthwhile or not.


When we speak of memory we refer to the ability of the line to return to its original form. That is to say, if when untangling the thread from the spool, it returns to its original form we can say that its memory is 0 or almost 0, on the contrary if once the thread is untangled it remains wound up its memory is high and therefore in this aspect it does not have much quality, to summarize the lesser memory our thread has the better. A trick to know if the thread has a lot of memory or not, is to look at the brightness of it, the brighter it is, the more memory it has and vice versa, if it does not lack brightness or is not very pronounced, our thread will be of better quality and more invisible under water.


It is an important characteristic before deciding on one type of line or another. If the line is very elastic and our intention is to fish at great depths, we will lose effectiveness in the diving as the force we apply will be cushioned by the elasticity of the line. On the contrary, if the elasticity is minimal, the line will not manage to cushion the fish’s pull correctly and it may even break and lose the catch of the day.

Diameter of the line

Table of resistance and diameter of the fishing line This is one of the main reasons why the fisherman should choose one line or another, even though the diameter is often not exactly related to the resistance of the line. Normally the larger the diameter, the more resistance the line will have and therefore it will withstand more the fish’s pull. But as we have seen before, the manufacturing material also plays an important role in this aspect.

The diameter of the fishing line is measured in millimeters (mm), ranging from 0.10 to 0.80 mm, depending on the brand and requirements of the fisherman, although for sport fishing, diameters greater than 0.80 are not usually used, with very few exceptions. The manufacturers usually show us a reference table relating the diameter of the wire and its resistance in Kg of maximum weight supported in suspension. It is worth mentioning that these tests are done in controlled situations and the reality may vary.

Abrasion resistance

We call abrasion the deterioration that occurs when the thread rubs against different objects, whether rocks, stones, waves, with the same thread, etc. Before choosing one or the other, we must know the resistance to abrasion because if it is very low, our thread will break with the slightest friction, regardless of the tensile strength or diameter it has.

Knot resistance

The rope always breaks by the weakest link, the same happens with the fishing lines when there is a knot or mess in our line, the weakness that acquires that zone is greater than in any part of the line, therefore it is necessary to control the knots that can be produced and to unroll them as soon as possible since there is risk of breakage by the fragility that increases that zone.

Fishing line colors

The range is very wide, from multicolored, through green, red, yellow, blue, orange to white or black, here you can give free rein to your imagination and tastes and choose the color of the thread you like, but you must bear in mind that often the color determines the resistance or performance of the line. Also if we are going to fish in clear waters the ideal is to opt for invisible or transparent threads, the green or blue ones blend in very well in the sea or waters with algae. If you want your line to stand out underwater, choose red, orange or yellow.