As the Lord of the western region, Roland naturally did not have any hands-on experience, he just made a rough sketch on paper, and then expounded the lines to a tailor that had been recruited.
Despite Roland having no personal experience with bras, he had seen more than enough various advertisements, television shows and films. He chose the most common shoulder strap and clasp from a few models, a buckle with three copper hooks. It allowed one to choose a certain amount of slack.