Machine-washable and dryer safe for easy care., StretchWick has a lightweight and moisture-wicking fabric that allows for enhanced airflow, so you sleep dry., The invisible waterproof barrier reduces the buildup of allergens in your bed and resists liquids and stains for clean sleep., It has a flexible stretch skirt that fits mattresses up to 18 inches in sidewall height., BEDGEAR’s StretchWick Performance technology provides all-way stretch for a flexible fit, even on adjustable bases.