Size: Semi-double - 120 x 200cm Surface fabric - Lyocell (regenerated fiber, natural material) 100%　Back fabric - Polyurethane (waterproof TPU)　Skirt - 100% Polyester ● Uses advanced knit technology to significantly reduce "rustling sounds." ● Filled with a moderate amount of padding for a fluffy feel. ● Thoroughly waterproof! Prevents moisture from leaking to the mattress, providing peace of mind! Using a waterproof sheet prevents moisture from penetrating the futon or mattress, reducing discomfort and allowing for a comfortable sleep. ● Excellent absorbency and diffusion; the terry cloth disperses moisture, keeping the surface feeling dry even when wet. ● Useful for pet protection, bedwetting対策 for children, incontinence対策 for the elderly, and as a hygienic sheet. Regular washing keeps it clean and sanitary. Specifications: The skirt is approximately 35cm. The box type with anti-slip rubber fits perfectly on mattresses with a thickness of 3-30cm! Can be used for beds, mattresses, and futons. Easy to put on and take off, even if you toss and turn in your sleep. Machine Washable: We want to use clean box sheets that touch our skin every day. With this cover, you can always keep your futon clean and comfortable. Safe for children. #BoxSheets