Yetis, or simply Yeti, are a race of blue, white-furred ape-like creatures that reside in the cold areas of Skylands. One notable Yeti is Slam Bam, who is one of the Skylanders. There are two-armed Yetis, four-armed Yetis, and if you believe the rumors, 638-armed Yeti; thank heavens they don't mind the cold, the gloves bill would be huge.[1]
In the Strata art book for Skylanders: Swap Force, a Yeti is depicted with thick, fully furred upper arms, with its lower arms being blue-skinned and slender. This design was not carried over into the final game, however.[2]
They share the same species name as Yetis, who are hostile Ice Ogres that can summon icicles or slam the ground to attack.
Despite being said that there are two armed Yetis, none actually appear as all Yetis encountered have four arms.
Despite resembling types of apes in appearance, Yetis are unique creatures, and are not actually related to them at all.