1.Foldable cushion 2.one side is 600D, the other is Alumium, with PE foam inside, it is waterproff,soft. Great for outdoor. Foldable cushion1.Materia: 600x300D with pe foam inside and Aliminium lining2. Size: 31X32CM3. with elastic strap4. Various colors for choice5. many colors for choice Foldable cushion