The first image of Andrew Garfield wearing the new Spider-Man costume was revealed today, and I really liked what I see. It's a completely fresh look that was easy for me to embrace. I just wanted to quickly point out a few things about the new costume that you may have missed.
First of all, it takes a one hell of a talented teenager to make a costume like this. Besides the fact that it looks like Peter Parker just got his ass kicked, the suit has had a major overhaul. The material of the costume has more of a mesh-like material instead of the classic spandex. The web design is built into the suit and not placed on top of the spandex like in the first Spider-Man films. The suit has more blue than red in it, with the middle red section being more narrow, and they also got rid of the classic horizontal red "belt".
Now the biggest change of the suit tells us a lot about where they have taken the direction of Spider-Man. Take a close look at the gloves. Now look at the wrists... There are web-shooters! They are Spider-Man's mechanical web-shooters, which I think is awesome! This takes the character back to the original comics before Spider-Man was was shooting off webs organically. I'm really excited to see that they took the character in this direction.
Here's a full explanation Parker's artificial web-shooters:
Spider-Man's web-shooters were perhaps his most distinguishing trait, after his costume. Peter had reasoned that a spider (even a human one) needed a web. Since the radioactive spider-bite did not initially grant him the power to spin webs, he had instead found a way to produce them artificially. The wrist-mounted devices fire an adhesive "webbing" (see below) through a threaded adjustable nozzle. The trigger rests high in the palm and requires a double tap from the middle two fingers to activate, eliminating the chance of accidental discharge when forming a fist. To accomplish this his hands are often in a distinctive hand position when he fires them (resembling the sign for "I love you" in American Sign Language, reverting someone giving you the "Evil Eye" in Italian superstition or the horned hand heavy-metal gesture). In order to fire the webbing, Spider-Man's fingers must hit the sensor precisely.
Spider-Man must steadily replenish his webbing supply, reloading his web-shooters with small cartridges of web fluid, which is stored under high pressure. In early stories, he carries his extra supplies in a utility belt worn under his costume. Later on, he equips the web-shooters with a bracelet-like carousel that automatically rotates a new cartridge into position as he empties them. When in use, a steel nipple in the carousel pierces the seal of the cartridge, and allows the fluid to travel through an air-tight channel toward the nozzle. Pressing down on the palm-trigger of the web-shooter causes the valve in the nozzle to open wider, expelling the fluid out. Releasing the trigger causes the valves to close, cutting off the web-line or fluid. If Spider-Man creates any variation to his normal web formula that's too strong for the pinch valves to sever, he might end up being tangled up or tied to the object he attached his web to. This has happened on more than one occasion. His web-shooters require constant maintenance and on more than one occasion suffer jams or malfunctions.
Spider-Man's web shooters require tremendous pressure to fire them (in most cases, Spider-Man's enhanced strength), and the average human cannot activate the trigger without the use of a hammer or similar object, although in many cases, normal human strength is sufficient enough to activate them for the purposes of plot development.
Occasionally, the web-shooters are modified to expel other liquids.
After he develops organic webbing, Spider-Man gives the web-shooters to his wife Mary Jane as a Valentine's Day present, after having them changed into bracelets, and weakening the pressure required, so that she can use the bracelets for self-defense. This appears to have reversed since the events in Brand New Day, as Spider-Man is once again dependent on his web shooters.
Ben Reilly, as the Scarlet Spider and later as Spider-Man, uses modified web-shooters that can fire fast-acting sedative "stinger" darts, and "impact webbing," balls of webbing that explode on impact and envelop the target. The impact webbing and stingers are activated by certain wrist movements, rather than using a double-tap on a palm trigger. They use larger web cartridges than Peter's web-shooters and worn on the outside of his costume. Spider-Girl, Peter's alternate future daughter, uses modified versions of Ben's web-shooters.
Scientists from the History Channel's Spider-Man Tech stated that logically, if web fluid were to exist, it would not be possible for Spider-Man to store the necessary propellant and fluid in a small cartridge, as a result organic webbing would be more realistic as far as his webbing use is concerned.