Jeggings were brought on when a higher demand for an even tighter style of pant came in the mid- to late-2000s. Since jeggings are typically made of a denim/spandex blend, they are often worn under a skirt or dress. Some jeggings have zip-flies and pockets, while others have different tattoo style design. Jeggings fall into two main categories: Jeggings that are completely different from a basic pair of leggings. Jeggings that are a true cross between denim and legging material. "Denim jeggings" are essentially a denim fabric with the elasticity of a legging. The latter are more similar to skinny jeans than the former. Some designers call "denim jeggings" pull-on jeans rather than jeggings . Jeggings were among the more popular clothing items of 2010, according to business reporting