"We use standart unisex T-shirts, the model in the picture uses a size 2 steps from the normal size." Brand Apparel : We mostly use Gildan 5000 T-Shirt. Gildan 18000 Sweatshirt This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for both men and women. • 100% combed and ring-spun cotton (Heather colors contain polyester) • Ash color is 99% combed and ring-spun cotton, 1% polyester • Heather colors are 52% combed and ring-spun cotton, 48% polyester • Athletic and Black Heather are 90% combed and ring-spun cotton, 10% polyester • Heather Prism colors are 99% combed and ring-spun cotton, 1% polyester • Fabric weight: 4.2 oz (142 g/m2) • Pre-shrunk fabric • Shoulder-to-shoulder taping • Side-seamed