 Skinny jeans taper completely at the bottom of the leg, whereas drainpipe jeans are skinny but then the lower leg is straight instead of tapering and so they are often slightly baggier at the bottom of the leg than skinny jeans.In some styles, zippers are needed at the bottom of the leg to facilitate pulling them over the feet.Stretch denim, with anywhere from 2% to 4% spandex, may be used to allow jeans to have a super-slim fit.