Captain America's Shield

Captain America's shield is Captain America's primary defensive and offensive piece of equipment for battle. The shield is made out of Vibranium.

The Avengers
Captain America's shield proved most effective in his confrontation with Thor as it absorbed the full impact from Mjolnir, Thor's mystical hammer, and causes a massive shock-wave to the surrounding forrest area. Captain America uses the shield again in the battle with the Chitauri in New York to shield his teammates as well himself. Iron Man uses his Repulsors rays on Cap's shield to launch an effective counter strike attack on Chitauri unit. Cap then uses the shield to protect himself from a grenade blast that sends him hurtling out a window and to the street below unto the car roof. Because of the Shield structure Cap was able to curl himself and protect himself from receiving extensive injuries.

The Avengers: Earth's Mightiest Heroes
Captain America's Shield is a very unique and powerful shield that can withstand any blow or blast and can be thrown very hard at the target then bouncing to other foes before going back to Captain America, the main user.

Vibranium Shield
The Vibranium from which the shield was made was sent as a gift to President Roosevelt from T'Chaka. Howard Stark used the vibranium to create a unique battle shield for Captain America to use it as his main battle weapon to fight against HYDRA during World War II. Before this he used a different shield based on the same design but this shield was different from the next version. The vibranium was obtained when Panther's father gave it to Howard as a gift.

When Captain America fell in ice after the explosion, he and his shield were frozen for decades until the 21st century when the Avengers found him in the Arctic Circle while looking for the Hulk. As Cap woke up, he mistook the Avengers as HYDRA agents and engaged them in combat until Wasp shows him the memorial statue of him and Bucky near the Statue of Liberty. After realizing that he's in the modern century, he fell into lethargy and put down his shield then left.

His lethargy had left him as Baron Zemo, Captain America's archenemy, infiltrated the Avengers Mansion to kill him. As Zemo is about to kill him, Cap's shield was thrown by Black Panther to save him before disappearing. Regaining his shield back, he immediately fought and beaten Zemo who in turn threw a time bomb near an unconscoius Wasp and then left. But Cap saved her by placing his shield near the bomb before it exploded.

Captain America had continued using his shield before Loki destroyed his vibranium shield with the OdinForce thus forcing him to use Lady Sif's shield to battle him and assist the Avengers.

The remains of his shield were kept by Cap inside his room. It was later repaired by using a Vibranium machine that fused the pieces back together.

Appearance
Captain America's shield resembles the American flag. It has white lines and a star in the middle. It is primarily red and shares all traits of the flag.

Types of Shields and Abilites

 * Vibranium Shield: An indestructible battle shield that can be used as a melee an ranged weapon created by Howard Stark. It is impervious to most attacks including bullets, grenades, rockets, fire, and lasers. It was used by Captain America from World War II until the 21st century, Destroyed by Loki with magic. Later restored by Black Panther's sonic beam machine.
 * Energy Shield: An energy absorbing shield that can extends its size at any time created by Tony Stark aka Iron Man. It was used by the Skrull Captain America. Destroyed by Cap with a hard stone. Later rebuilt with new modifications (can create a huge force field around the user and others; create an energy weapon; and fire lasers). Briefly used by Hawkeye to prove to Cap that the energy shield is the best to use, but was immediately destroyed by his android doppleganger.
 * Original Shield: A highly-durable shield originally used by Cap before he resorted using his current shield. Later used it against the Serpent Society but was left in dented state.

Known Users

 * Captain America
 * Baron Zemo (briefly)
 * Captain America (Skrull) (formerly)
 * Iron Man (briefly)
 * Hawkeye (briefly)
 * James Barnes (briefly)

Trivia

 * In Captain America: The First Avenger, both Bucky and Falsworth wield the shield in addition to Steve. Bucky during his last stand on Zola's train, and Falsworth throws the shield to Steve in the final battle. In the comics, Barnes was Steve's successor as Captain America and Falsworth was the UK equivalent, Union Jack.
 * Before Steve picks the Vibranium shield to be his own, Peggy Carter shoots it as she was angry at Steve. The red, white and blue painting afterwards doesn't cover the scratches done by Peggy's bullets. However, after Captain is frozen and thawed out, the restoration painting manages to cover up even that.
 * In Iron Man 3, the film's villain Mandarin has a tattoo of Captain America's shield on the back of his neck.
 * In Captain America: The Winter Soldier, Bucky as The Winter Soldier is able to intercept the shield and toss it right back to Cap intensely.
 * In the original comic book continuity, the shield is made of a unique vibranium-iron alloy created by metallurgist Myron MacLain, though it was often erroneously referred to as an adamantium-vibranium alloy.
 * In Iron Man and Iron Man 2, the shield can be seen on Tony Stark's work bench.