We’ve seen STM’s Dux for both iPhone and iPad before, and now we have an early look at the MacBook Air edition of the protective case. STM’s Dux for MacBook Air ($60) is a transparent polycarbonate case with TPU edges for drop protection. Four textured rubber feet on the bottom of Dux prevent your MacBook from slipping on a smooth surface. We received the 13” MacBook Air version of Dux, but a 11” MacBook Air version should be available, as well. The 13” version should be released in late April/early May.