Giants are a race of humanoids that vastly overshadow the other known races of the world in size. The most commonly known giants are those from the island of Elbaf. There are also different tribes of giants such as the Ancient Giants and the unknown tribe of the Yeti Cool Brothers.
Appearance
Being giants, they are literally giant humans in appearance, although many giants seen have been noted as having more exaggerated proportions and features than most humans. They are so large that when they cry, their tears can cause large areas on the ground to appear flooded.
They are not to be confused with large-sized humans such as the Franky Family's Kairiki Destroyers or Bartholomew Kuma. To a giant, these large humans are no more than "oversized pipsqueaks." Large-sized humans, at their tallest, reach the knee height of a giant; a normal human only reaches as high as the ankle in comparison. Edward Newgate, a large-sized human, has shown that his entire body is barely taller than the giant Lonz's head alone. Normal giants are 12 meters tall at minimum, while the tallest known human, Charlotte Linlin, is only 8.8 meters tall. Overall, normal giants tend to hover around 20 meters in height when fully grown, with Morley currently being the shortest known giant at 12.53 meters tall and Dorry being the tallest known normal giant at 22.6 meters.
Sanjuan Wolf is a notable giant who stands taller than Ancient Giants, as he is nearly three times as tall as Oars and as big as the Marineford headquarters building. He is considered to be one of a kind among giants due to his massive size, though this was attributed to a Devil Fruit he possesses rather than natural growth.
Overall Strength
Giants are an inherently strong and collectively a near-unstoppable race. Average humans cannot stand up to them, making them ideal guards and deadly warriors. Throughout the series, characters regularly state awareness of the power of giants.
Giant Feats
Oars' strength was said to be powerful enough to move continents, and his fearsome reputation drew Moria to acquire his corpse for zombification, believing that its power would help him become the Pirate King. Big Mom believed that if she had managed to gain the allegiance of the giant warriors of Elbaf, she would have been able to defeat the other three Emperors and become the Pirate King herself. During the Ohara Incident, Saul lifted up and smashed a number of the colossal Buster Call fleet battleships, which were far larger than him. He had been noted to have more strength than an average giant. In fact, many giants are servants of the World Government and the Marines, enforcing the latter's status as one of the Three Great Powers. Their overall strength is the primary reason that the World Government is conducting research on gigantification, in the hopes of creating their own giant armies.
Relative Size and Strength
Just as large-sized humans have an advantage against "normal" humans, large-sized giants like Oars have a massive advantage against "normal" giants. Large-sized humans, even those with great strength, are usually just too weak to take on a giant, as Oimo and Kashii proved to the Kairiki Destroyers. Most giants thus far have either been taken down by the strongest of the human fighters or by tactics. In all observed cases, combatting giants has been achieved through exploiting their great size, tight teamwork and cooperation, and turning the giants against one another. Oimo and Kashii were taken down by the joint efforts of the Galley-La foremen, Zambai, Sodom, and Gomorrah. While Sodom and Gomorrah had the strength and size almost equal to the giants, the others who aided them used more tactical efforts, such as pinning down Kashii's face when he fell and using Oimo to deal a knock-out blow to his partner.
Drawbacks and Weaknesses
While all giants are incredibly strong, their sheer size is also their biggest disadvantage. The larger giants such as Oars and Oars Jr. are so big that they make for easy targets during battles. Another disadvantage is space, as giants need room to maneuver themselves without damaging buildings or stepping on allies.
