Features: Overall Directional elastic band: Overall directional elastic band can pull the frame, so that it can easily stretch and fit the bottom of the mattress, even if you toss and turn, it can prevent the corner from popping out. Microfiber fabric: Breathable microfiber fabric brings a soft and comfortable feeling to your bed, allowing you to lie in bed for a long time and enjoy a good sleep experience. Specifications: Material: 90g microfiber Color: dark gray Size: about 75 x 38 x 7 inches/ 190.5 x 96.5 x 18 cm, fit for twin size mattresses about 75 x 38 x 4 inches/ 190.5 x 96.5 x 10 cm Package includes: 1 x Fitted sheets Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Our product is compatible with Milliard Tri Folding Mattress. Please confirm the fitting model before placing the order.