Jeggings are a legging/jean hybrid. They come in different forms! You can get jeggings that are literally as skin tight and soft as leggings, but just have a fake jean print on them. Or they have jeggings that are simply very stretchy and soft skinny jeans. They feel almost exactly the same as normal skinny jeans, just a tad more comfortable.
Skinny jeans/jeggings can basically be the same thing. Typically skinny jeans will be made out of a thicker fabric and be less flexible.
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