Crewcuts size 8 viscose/cotton kids pants

Such a cool pair of pants. They are a faded black with cream colored accent double stripes down each side. Silky viscose on the outside and soft cotton on the inside. Side seam pockets and a single rear pocket. Functional drawstring waist. Kids athleisure wear if such a thing exists. I’ve tried to take close ups of the fabric, but feel free to ask questions! The last pic shows the cotton inside and viscose outside. From a smoke free, dog friendly home.