Check out this fairly new British brand, The Fableists. The name is a blend of:  

[ fable + activitist ] Fable – a short story with a moral, Activist – Someone with a rebellious spirit who makes positive change happen

The Fableist look is based heavily on old school utilitarian work-wear and classic vintage clothing. And the label has no seasons. They’re designed to be worn all year round by both boys and girls. They are made to be passed on to someone else when they’re outgrown and even come with their own passport so you can track where they’ve been. That’s cool.

And they are course,  sustainable every  step of the way. And watch their very sweet video below.