Fully waterproof 100% breathable fabric, waterproof mattress cover with anti-mite function. - Brand: MYLUNE HOME - Size: 100x200x30 - Waterproofing: Fully waterproof 100% - Breathability: Breathable fabric - Features: Anti-mite "Fully waterproof sides, oeko-tex certified" This waterproof box spring sheet prevents moisture from penetrating the futon and mattress, reducing discomfort and allowing you to spend your time comfortably. The outer fabric is absorbent and has excellent diffusion properties, and because it is terry cloth, it disperses moisture and keeps you feeling dry even when wet. I purchased it but did not use it. Brand new, unused.