SIR. Pietra Silk Dress is a maxi slip dress from SIR. featuring a V-neck and thin spaghetti straps. Its satin-crepe silk construction and slip-on design make it a refined choice for day-to-evening wear. Key attributes: Black | White | Silk | Slip on | No pockets | V-neck | Spaghetti straps | Crossback | Zigzag print | Flared hem | Maxi length | Satin crepe finish | Dimensions & fit: Fitted | Composition & care: 100% Silk | Dry clean only