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 futons and mattresses, reducing discomfort and allowing you to spend your time comfortably. The outer fabric is absorbent and highly diffusive, 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.