If you are asking what are Jeggings?
Jeans + Leggings = Jeggings. Essentially super fitted jeans that might as well be leggings.
Skinny jeans are good! Leggings are good when worn correctly. The marraige of the 2? I'm a little torn. I mean we've already established that leggings are not pants does adding a few pockets make it ok? I'm thinking it'll really have to depend on the material! If it's super stretchy denim, perhaps it's okay, but if it's a thin jersey, we don't want to see that camel toe, so be sure to cover up with a tunic, mini or summer dress.
Jeggings are pretty affordable and here's a quick roundup of what I saw available...not necessarily advisable!
Xhilaration Jeggings for only $9.99, they are sold out online but perhaps they can still be found in stores? Don't really love this version as I feel like people might falsely try to wear them as pants!
Amazon.co.uk had a version of acid wash for only $16 that look fairly substantial.
Topshop Jeggings in Grey Denim Look $40. These look pretty bland and you almost can't tell they are jeans! I think these should be worn like leggings and definitely not pants.
ASOS by far had the best variety at the best prices. I think these might be safely worn as pants because they look slightly more substantial. They range in price from approximately $17 for the metallic versions on sale up to $48 for the cute floral print version.
Finally the creme de la creme of jeggings brought to you by the lovely designer/stylists of Current Elliott for $218 via Shopbop.com