Braid or Microfilament: line is very strong for a given diameter, often twice as strong as mono, and you can wind more line onto your reel spool at a stronger line test. Braided line does not stretch thus remaining the original structural memory of the line. Additional benefits include: Braid sinks faster, casts farther, and trolls deeper than mono.
Braid fishing line has become more popular to use in most aspects of fishing than ever before. Carp anglers especially have used it for some time but now more and more sea anglers are coming to realize the benefits of using a line that has a far greater strength to diameter ratio than any monofilament line.
The advantages of using braid against monofilament line far out way the drawbacks.
Braids used to be very visible in the water but now with braids such as Dark Moss Green 'Tuff' Braid, this has been eradicated almost entirely. The Dark Moss Green Braid is very popular with Carp anglers.
Braids are very abrasive resistant and of course, having a far greater strength to diameter ratio they are less prone to snap under most pressures. Some braids are available with just a 0.28 mm diameter to 100lb breaking strain! Braid fishing lines are made from the same material that is used to make bulletproof vests! They are made from the highest quality 100% Dyneema braid fiber currently on sale today.
With less diameter than monofilament, braid has less water resistance and therefore is better in a tidal pull as found at different stages of the tide and in deep water. This is the reason why braid is often used in boat fishing by a lot of anglers. With less diameter it is less sensitive to wind, having a better resistance to crosswinds etc than monofilament. You don't get as much drift or drag on the line.
Braid has very little or no water absorption so keeps you more in touch with a fish. When you use braid for the first time you will feel a very significant increase in 'feel' with a fish on the hook.
Braid fishing line has no stretch or memory so every little tug or pull by even the smallest of fish is felt on your rod tip.
The one thing you have to allow for is that having no stretch you have to be careful when setting a hook after a 'bite', a little restraint is necessary so you don't pull the hook out of the fish's mouth.
Braid fishing line isn't the answer to a maiden's prayer BUT it can in a lot of situations be a better alternative than monofilament.