This FABULOUS tote bag measures 16 x 25 inches (Widest point when expanded). It comes with a removable bottom insert so the bottom of the bag will lay flat when expanded and the sides of the bag can also cinch together and snap for a smaller look. It comes with a matching removable purse. This bag is a great work tote, diaper bag or beach bag and can also be put in the washing machine and air dried. This is a great multipurpose bag!!