Soft Brushed Polyester TOTAL PROTECTION: This box spring encasement protector completely surrounds your box spring with 360˚ protection; Zipper closure covers all six sides of your box spring and fits up to 10” depth AQUA TIGHT BARRIER: This fabric boxspring protector with a waterproof layer safeguards your bed against liquids, spills, and accidents – keeping it dry while also avoiding stains and messes ENHANCED SLEEP EXPERIENCE: Keep your sleep environment fresh and clean with this boxspring cover. 100% polyester blocks out liquids, stains, and dirt, for the ultimate sleep oasis EASY CARE: Machine washable and dryer safe on low heat means your boxspring encasement is an easy clean. Simply toss in the wash and dry on low heat for a simply clean sleep surface TWO INDIVIDUAL PIECES: Cal King box spring encasement protector includes two individual encasement protectors to easily protect both halves of your box spring