MILLY Minis Cheetah Knit Jacquard Hat, Scarf and Mittens. 72% Viscose, 28% PBT. An adorable add-on to any outfit, this cheetah set will keep your Mini warm in style. Our favorite is the super cute winter hat, cat ears included. The small fits size 4-6 and the medium fits size 8-10. Hand wash cold, lay flat to dry.