clothing for men Norway

We are a newly established online store looking to sell clothing intended for workouts. We want regular cotton fabric, with the option for oversized sizes. Initially, we only want to sell t-shirts in black, but later we plan to expand to more clothing items like hoodies and other garments in various colors. We want our design to be produced on the t-shirts. We also want our design on all labels inside the garment, such as where the size is indicated.