The Ichi Sound Diamond Logo printed on an American Apparel 2001 Fine Jersey Short Sleeve T-Shirt. The American Apparel t-shirt is the smoothest and softest t-shirt you'll ever wear. Made of fine jersey, it has a durable, vintage feel. These classic-cut shirts are known for their premium quality, as well as ability to stand up to a washing machine (will keep size and color after many washings). The shirts are 100% fine jersey cotton, except for the heather grey color (90% cotton, 10% polyester).