Oliver is made of gray organic cotton fleece. He's about 14" tall. His eyes and nose are hand stitched with cotton thread. He is stuffed with polyfill, so you can hand wash him and he will air dry, no worse for the wear.
Oliver's lucky hat is made from green cotton. As you can see it has spaces for his ears, and a spiffy red and orange tassel on top. His scarf is made of striped cotton jersey. Both of those things are removable so the animals can share and trade.