Sherlock Holmes Books 221B Baker Street T Shirt Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat 221B Baker Street is the address of Sherlock Holmes in the classic 1887 books. Fans of classic literature will love this design. Lightweight, Classic fit, Double-needle sleeve and bottom hem