As any other product, clothing is a tool in our life, it serves a purpose. It is there to help us, to make our lives better, easier. It shouldn't disrupt anything in its surroundings and it should also leave room for the user's self-expression.
I believe that a garment should be very versatile, address as many of your needs as possible and also tell a story about your values. But it should stay humble when addressing the user and his environment, it should be able to integrate in it, rather than interfere.
The next principle will be coming up next week, make sure you catch it as they are all, of course, connected. Form Follows Feeling.