Waterproof Material- These throw pillows cases outdoor are made of quality polyester fabric,which is sturdy, breathable and comfortable can effectively prevent water and stains from splashing. As well as UV protection without fading. Various Functions- These square waterproof pillows cases are suitable for patio, garden, living room, bedroom, balcony, yard, beach, picnic, swimming pool, etc.all indoor and outdoor furniture. Effectively protect your pillows from the sun and rain. Zipper Closure- Invisible zipper enclosures for an elegant look. Works smoothly.The color of zipper is same to the color of pillow cover. Easy Care- Safe for Hand wash or machine Wash.Gently Cycle,please do not bleach or iron.