Aoodor outdoor chair cushions are made with waterproof, fade-resistant fabric and a Tpu coating to block moisture. Filled with high-density sponge and Pp cotton, they offer excellent support and long-lasting shape. The tufted design prevents displacement, and the air vent helps prevent dampness. With 4 pairs of straps, they fit securely on various chairs for enhanced stability. Perfect for outdoor use, they come vacuum-packed and restore to full size after unpacking.