When you see the Carhartt name on a t-shirt, you can be confident that it is durable, high quality Carhartt clothing. Carhartt t-shirts are made from the best 100% cotton fabrics. Carhartt T-shirts are the perfect choice for wearing alone or layering. When you wear Carhart T-shirts, you're wearing a legend. Carhartt. Work T-shirts for the American worker.