The early #2000s trend of wearing dresses over jeans was a popular #y2k era look, often featuring a long dress, like a babydoll or slip dress, layered over flared or skinny jeans. 2000s Denim Dress Etsy Canada Vintage 2000s Y2K Strapless Denim Dress Second Shift Vintage Chicago, IL ATTIC The early #2000s trend of wearing dresses over jeans was a popular #y2k era look, often featuring a long dress, like a babydoll or slip dress, layered over flared or skinny jeans.