Boneville highlight their Sharp Engineer jacket/bag from their Spring/Summer 2014 collection in this short video. But what’s a jacket/bag, you ask? BNV’s Sharp Engineer, after several maneuvers, can turn from a heavy overcoat to a lightweight vest and even an over-the-shoulder bag. The hybrid style is multifunctional and trans-seasonal — altogether thick enough for winter days, layers are removed for Fall and Spring seasons. The short clip below not only provides a step-by-step process of the easy transformation, but it also highlights the product’s design elements — striped drawstrings, plastic buckles and a yellow tag.