Plush Thick Padding for All-Day Comfort: High Back Patio Chair Cushions feature 12cm thick high-resilience PP cotton filling, enhancing sitting and leaning comfort to ease prolonged sitting fatigue. Waterproof Outdoor Performance: Crafted with waterproof fabric, Outdoor Chair Cushions light, keeping seating dry and suitable for daily outdoor use. Easy Care & Long-Lasting: Outdoor Glider Cushions are designed for low maintenance-spot clean only, avoid machine washing and objects to preserve their quality over time. Fit for Most Patio Chairs: With a 53x53cm seat surface and 3-section back design (25cm/34cm/53cm), Patio Chair Cushions fit a wide range of outdoor loungers and high-back chairs. Secure & Portable Design: This 3-fold Adirondack Chair Cushion comes with back straps to firmly attach to patio chairs, preventing sliding; its foldable structure allows easy storage when not in use.