Doctoral Degree Academic Hood, Trimmed With Velvet Collar, with St. Thomas colors: Purple And Gray Satin Lining, 100% Polyester. The color of the velvet edge is determined using this official degree color chart. That velvet edge hood color, sometimes known as Academic Regalia Inter-Collegiate Colors, represents your specific degree or discipline. **PLEASE NOTE*** These may take 4-6 weeks to ship.