They're made from a soft microfiber material and come in two different sizes with a white bottom and an envelope closure on the back. 
.: 100% polyester microfiber material
.: Available in 2 sizes: 26" x 20" (66cm x 50.8cm) and 36" x 20" (91.4cm x 50.8cm)
.: Printed top and white bottom
.: Envelope back closure
.: NB! Pillow insert not included