This concept was inspired by modern day "work wear" fashion trends where functionality meets aesthetic. This shirt/kit concept was designed to mix and match to create multiple looks. You can velcro the pouches onto the shirt or attach them to the holster and so on.
Custom patterns were made and sewn in order for the pouches to work for the shirt but also for the holster to ideally have a functional purpose especially when you don't want to carry a bag.