HD print is a segment in which print is done in two sessions. First the garment is printed as the base and then on top of it via usage of different printing method additional surface is created. When you will wear this T-shirt you will realise that certain part of the t-shirts are raised and that is result of an exceptional HD printing. So technically the graphic on the T-shirt is 3D , i.e. having three dimensions. The technology used is wash proof and can last for years. Just don't go all ninja on it. These graphic HD printed T-shirt are great for a casual outing and they look exceptional with denims, adding more zest to your personality.