Over-washing our clothes is a sustainability issue that’s often not discussed, but garment care is actually responsible for a significant amount of an item’s carbon footprint over the course of its life. In fact, a study by Levi’s found that for its iconic 501 jeans, the consumer care phase—i.e. washing and drying—was responsible for 37 per cent of its carbon footprint, as well as 23 per cent of total water consumption. “Changing our home laundry routine is one of the biggest opportunities for resource conservation,” Paul Dillinger, Levi’s vice president, global head of product innovation, tells Vogue. “It’s also an incredibly easy solution: we’re just asking people to not do their laundry.”