Unisex Cotton Tie-On "Hearts Stethoscopes" Scrub Cap, OR Hat, Surgeon Hat, Head Covering, Food Service, L/D Hat, CRNA, Medical Uniforms Unisex 100% Cotton "Hearts and Stethescopes" Scrub Cap with Partial Lining, Elastic Back, Contrasting Self Tie and Lightweight and Comfortable to Wear. Fun hat and you'll get lots of attention with this one. Fabric has been pre-washed to decrease shrinkage. Unisex Sizing fits most, and short to medium length hair. Elastic back for for shaping and ties for adjusting size Mannequin is size Small-Medium. For smaller head sizes, you can cross the ties and tie them at the top of the head for a more snug fit. Will also fit Medium-Large head size. Hand or machine wash ( I prefer to use a laundry bag) and dry low med temp. Iron as desired.