Ray BEAMS waffle back slit pants! The back hem has a slit. The waist is elastic, and the soft waffle material is comfortable to wear. You can wear it regardless of the season! The back slit gives a stylish look from behind! It's great worn alone, or paired with a dress or a long top! The size is 0 (equivalent to a small). I usually wear a medium, but size 0 fit perfectly.