Spider-Man Suit

"Well, I could've stuck the landing a little better. It's just the new suit- it's nothing! Mr. Stark, it's perfect, thank you."

- Spider-Man to Iron Man

The Spider-Man Suit is a specialized suit created by Tony Stark to help Peter Parker focus and control his powers and also to protect his identity.

Homemade Suit
"You're the Spiderling? Crime-Fighting-Spider? Spider-Boy?" "...S-Spider-Man." "Not in that onesie you're not." "It's not a onesie."

- Tony Stark and Peter Parker

Originally, Peter Parker wore a homemade suit consisting of cheap red and blue clothing, gloves and black goggles to fight crime in New York City; he hid this suit from his aunt May by hiding it in a loft above his room which came down on a rope whenever someone opened it. Parker abandoned this suit when Tony Stark visited him and decided to make him a new suit after jokingly mocking it.

New Suit
"You're in dire need of an upgrade. Systemic, top to bottom."

- Tony Stark to Peter Parker

Tony Stark constructed a new-and-improved suit for Peter Parker after visiting him and seeing the old costume he used to fight crime as Spider-Man. This new suit was used at the Clash of the Avengers to fight Captain America's faction.

Original suit

 * Web-Shooters: The suit has web-shooters strapped onto the wrists that allows Spider-Man to project synthetic webbing for various purposes, these ones seemed to be made from old parts that Peter presumably got from the garbage; these were the only part of the costume which Tony Stark didn't mock.
 * Black Goggles: Peter relied on wearing black goggles which had little slits in the lenses for Peter to see out of, Tony Stark mocked these while putting them on, quoting 'Lordy! Can you even see in these?', to which Peter replied that he could see in them, stating that his senses had been 'dialed up to 11'.

Upgraded suit

 * Eye Lenses: Spider-Man's eye lenses appear to be modeled after camera shutters, giving him a squinting look when they close in and provide him a greater depth of field. This mechanism also helps Parker filter out extra stimuli.
 * Upgraded Web-Shooters: The suit has web-shooters strapped onto the wrists that allows Spider-Man to project synthetic webbing for various purposes; these shooters were more updated and modern.
 * Utility Belt: The belt attached to the suit can hold at least six spare web-cartridges used as refill for the web-shooters that Spider-Man wears on his wrists.

Trivia

 * In the comics, Peter Parker created his Spider-Man suit himself, while Tony Stark created the Iron Spider Armor for him during the Civil War.
 * The camera shutter-like eye lenses may refer to Peter Parker's occupation as a freelance photographer for the Daily Bugle in the comics.

Behind the Scenes

 * The suit's design is inspired by the classic era Spider-Man costume.
 * The suit was entirely a CGI creation for Captain America: Civil War, but an actual costume was created for Spider-Man: Homecoming, to be worn by Tom Holland.