Shadowline Plus 24 Inch Princess Full Slip (3410X). The Shadowline Plus 24 Inch Princess Full Slip 3410X helps give you a more polished appearance with its strategic seaming and relaxed fit. Full slip is knee-length. Lace trim accentuates V-neck, back, and non-adjustable straps. Shadowline's Plus 24 Inch Princess Full Slip is made of nylon.