All aboard! This delightful fitted crib sheet features playful animals having fun and taking a train ride on a soft blue background. Our fitted sheet is made of 100% cotton and has extra deep pockets on the bottom to ensure a safe, snug fit. Our favorite Choo Choo sheet coordinates beautifully with our exclusive Safari Express Collection. Fits all standard mattresses measuring 28 inches x 52 inches. Care Instructions: Machine wash cold with like colors. Gentle cycle. Do not bleach. Tumble dry low. Iron on lowest setting as needed. Imported.