Dear Customer, our product is made of Interlock fabric. Interlock fabric, with its double-layered knitted structure, has a tough, full and flexible texture; it maintains its form for a long time and offers comfortable use with its soft surface. Our product consists of a mixture of 49% Viscose, 48% Polyester and 3% Elastane. There is an injection letter print detail on the side. If you're looking for a plain design without any patterns, but still want a small logo on the collar, feel free to browse our other products in the store. Detailed information is included in the product descriptions and features. We wish you pleasant shopping.