This sublimation crew neck is made by printing a design with sublimation ink onto special transfer paper. The design is then heat-pressed onto a polyester or poly-blend shirt, causing the ink to turn into a gas and bond with the shirt's fibers, creating a permanent, vivid print. This type of printing is pressed into the shirt so it keeps the sweatshirt feel and you essentially cannot feel a difference over where the image is pressed compared to the rest of the material.