How often do you throw your jeans in the wash? In China, they do it every ten wearings. In Europe, it’s every five. In America? It’s every other time we wear our jeans. The C-E-O of Levi Strauss – says we should NEVER wash our jeans. That’s more than just a headline-grabbing statement. Chip Bergh (BERG) says it’s really about conserving water.