This sweater in either the silver and white or fuchsia and orange rib knit is going to be your go to denim pairing look!  It has a ribbed mock neck and great lines on front and back that create an hourglass shape.  Fit is true to size.  
Elena Wang Collection 
100% Cotton
Handwash cold inside out (delicate cycle) and dry flat

Rib Knit Go To Sweater