In terms of materials, you can opt for choosing soft but resisting materials that make your Barbie shirts look incredible. Our favorites are: Cotton. In terms of t-shirts, this might be one of the most popular materials as it’s soft, comfortable, hypoallergenic, and compatible pretty much with many inks. Polyester. It’s lightweight, perfect for outdoor or movement activities, and its duration is longer than cotton. It resists various washes and wears. Tri-blend. As its name suggests, it's composed of 3 different materials, 50% polyester, 25% cotton, and 25% rayon. Combining these elements allows you to have the best of the three worlds and get a durable, breathable, fast-drying t-shirt.