Material: A cotton-polyester blend forms smooth, noise-free pillow protectors treated to block static and draw surface moisture. Full zipper single-seal construction fully encloses inserts to hold back dust, pollen and floating skin particles without irritating sensitive skin.Size: Multiple measurement options cover 20×26 inch, 20×30 inch and 20×36 inch, with each two-piece set matching standard bed pillows. Light woven fabric maintains steady airflow for balanced temperatures year-round.Occasions: Suited for residential bedrooms, hotel suites, short-stay rentals, dorm rooms and RV sleeping spaces. Plain neutral white coordinates with all bedding layouts for everyday rest and guest accommodation setups.Care: Fabric withstands regular machine washing and holds its form after repeated cycles. Robust zipper closure stays intact through consistent laundering to sustain complete blocking performance for long-term daily use.